MGSCV Petrograph June 2021 Monthly Bulletin of the Mineral and Gem Society of Castro Valley, Inc.
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CLUB NOTES
In This Issue: Next Board Meeting and Show Meeting will arch Club Notes be Saturday May 8th.at 3:00 PM via M General Meeting Zoom virtual room. If you have not received a link to the meeting, and would May 15th like to attend, please email Board Meeting [email protected] and request an May 8th 2021 invitation.virus Gem of The Month . the General Meeting for May 15th via Zoom at 3:00 Brad Smith Bench Tips Updated Letter from the Prez
Shop Notes
Map to the general
meeting place
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MGSCV Petrograph June 2021 Monthly Bulletin of the Mineral and Gem Society of Castro Valley, Inc. This publication is the bulletin of the Mineral and Gem Society of Castro Valley, Inc., a member of the California Federation of Mineralogical Societies, Inc., the American Federation of Mineralogical Societies and the North Bay Field Trip Association. Bulletin Submission Policy Submission deadline is the second Friday following the General Meeting (normally the second Wednesday of the month.) Anonymous contributions will not be considered, but if requested, the contributor’s name can be withheld. Members are encouraged to submit articles that may be of interest to the general membership. The Editor reserves the right to edit or omit any submitted articles. Sources must be cited for material quoted from other authors. Permission to reprint Petrograph articles is hereby granted provided properly cited. 2020 MGSCV Officers Elected President – Jodi Minshall [email protected] Vice President – Greg Croft [email protected] Secretary – Sheryl Cooper [email protected] (510) 589-8858 Treasurer – Sheryl Cooper [email protected] Director – Pete Bergeron [email protected] Director –Norm Hodgson [email protected] Director – Michelle Bennette [email protected] CFMS Director – Beth Farmer [email protected] Shop Manager Neil Delfino [email protected] Show Chairman – Cathy Miller [email protected] Membership – Tony Cooper [email protected] 510-589-5292 Editor –Diana Cohoon [email protected] 925-348-3000 Past President – Bonnie Andrade [email protected] Appointed Scholarship Chair – Greg Croft Librarian – Mike Mc Bride Historian – Norm Hodgson Purchasing Agent – Beth Farmer Education Coordinator – Lily Johnson Sunshine Reporter – All members Door Prizes – Neil Delfino Tony Cooper Web Master – [email protected]
Publication Staff Contributors: Sheryl Cooper, Jodi Minshall
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BOARD MEETING MINUTES Treasurer: Not present
By Rosita Alvarez Croft Shop Manager: The Material collected from the house in San May 8, 2021 Leandro is now in the shop. Neil Delfino requested suggestions for a The meeting was called to order at more secure way of storing them. 3:00 PM by Jodi Minshall. The shop supervisors need to keep The Board Meeting on Saturday, people from rummaging through it. June 12th will be in person at 3 PM Cathy Miller reminded us that there and will also be on Zoom for those are four display cases with locks who are not comfortable meeting in upstairs that could be used for some person. of the smaller items. There were 10 Board members in The shop needs to be cleaned up. attendance: Jodi Minshall, Bonnie Maybe we can arrange a “Clean Up” Andrade, Greg Croft, Beth Farmer, get together in late June? Michelle Bennett, Neil Delfino, Pete Bergeron, Cathy Miller, Lily Johnson, Lily Johnson had a problem starting Norm Hodgson. Genie #2, Neil Delfino rolled it back and forth a couple of times and got it Meeting minutes from the previous to work. He asked Lily to try it again Board of Director’s meetings for and to let him know if it still did not April were reviewed. Norm Hodgson work. moved the minutes be accepted as printed in the Petrograph with Greg Neil installed sheet metal work inside Croft seconding the motion. A vote on the 18” saw and it works fine now. He the motion was taken and was passed will take a look at the other saw. unanimously. Pete Bergeron had a problem with Committee Reports: the 24” saw. It stopped working about half way through cutting a Vice President: Greg Croft is working piece of marble. It was hot so he on a short presentation for the May waited about General Meeting on May 15th.
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30 minutes and it would not start allowed by the Alameda County again. Health Department.
Librarian: Not present We need to decide if we are going to have a raffle. If so, we need to ask CFMS Representative: CFMS is our members for some donation considering going to a digital format items. for their Newsletter. We are still going to try to hold a Beth Farmer has posted the Entry Gem Show in March 2022. Forms for Camp Paradise in the shop. Sandi Kilcrease Membership Coordinator: Not ([email protected]) or Sandie present Fender ([email protected]) can also provide an application form. Treasurer’s Report: Not present The forms are also available at the Sunshine Report: Sheryl’s treatment end of the May 21st online CFMS is going well. Newsletter (page 9). Procurements Report: Not present Show Chairman: We are still waiting to see when we can go forward with Purchasing Agent: Nothing to report the show plans. Education Coordinator: Lily Johnson Cathy Miller and Beth Farmer need to is considering teaching Metal get together to discuss the number Smithing and Wire Wrapping classes. of vendors. Cathy sent out 50 plus emails that contained the Oct. 16-17 Teresa stopped by on Wednesday to dates. So far, we have 24 confirmed check out the Introductory Kits for vendors. At most, 15 will fit in one the Beginning Lost Wax class. She is hall. If we can get 28-30 vendors we ready to start doing Zoom classes can use both buildings. However, we and is considering working with 2 or 3 need to wait until July or August students in person. before we know the parameters Editor: Not present
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New Business: We need to start the County Fair regarding a Virtual looking for a Beginning Stone Cutting Competitive Exhibit. The entry deadline is Tuesday, June 1st. instructor for Monday Nights. Mike McBride is not sure if he is ready to Kirk Schultz is wondering if we can come back yet. have 6 people in the shop. However, until June 19th The Alameda County We should plan for an Open House Health Department will only allow us the weekend of June 26-27th. It to be at 25% of capacity. We need to needs to be all hands on deck. Please wait until they let us know we can let someone know if you cannot make increase the number of people. it. We will do Clean Up on Saturday, June 26th from 9 am to 2 pm and We will have a blended format for hold the Open House on Sunday, June both the Board (June 12th) and 27th from 10 am to 2 pm. There will General Meetings (June 19th), (i.e. in be club materials available for person for those who feel purchase. comfortable doing so and via Zoom for those who are not). Neil Delfino attended the Sutter Creek Gem and Mineral Show last The Shop will remain open for weekend. There were lots of people member work sessions at the hours from a lot of places in California. He below. Beth will update met a couple from Mendocino looking for help identifying rocks. Monday Closed, looking for a lapidary instructor The show was outdoors and the parking lot was completely full by 11 Tuesday Closed, need daytime am. People were parking next door. supervisor, Lapidary - Closed
The Alameda County Fair is officially Wednesday Lapidary - 11 AM to 1 PM, opening in October. Beth Farmer has Library open 11 AM to 12 PM. Kirk not heard anything about the Mineral Schultz, teaching faceting in the and Gem Building. Pete Bergeron evenings, 6 PM to 9 PM received an email from someone from Thursday Lapidary - 10 AM to 2 PM,
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Friday Closed comfortable meeting in person) at the Church on June 19th at 3 PM. Saturday Faceting - 9 AM to 12 PM, Lapidary - 9 AM-12 PM, Juniors, Presentation: w/supervisor’s approval, Library open 10 AM to 12 PM. Greg Croft gave a short presentation called “Rhodonite in California”. Sunday Lapidary - 9:30 AM to 12:30 PM Meeting Minutes:
The hours on the board at the Shop. Meeting minutes from the previous Board and General meetings were not reviewed at this meeting. All present were board members. GENERAL MEETING Committee Reports: By Rosita Alvarez Croft Show Chairman: Cathy Miller gave a May 15, 2021 brief update on the upcoming show status. By Rosita Alvarez Croft El Dorado Gem and Mineral Society The meeting was called to order at in Placerville has rescheduled their 3:10 pm by Jodi Minshall via a Zoom show for the same weekend as us. meeting space. Some dealers have cancelled. We There were 6 club members and no have at least thirty potential guests in attendance. After Greg vendors. Eighteen to twenty have Croft’s presentation and a brief confirmed but we don’t want to send discussion regarding the upcoming out contracts until we get the go show in October. It was decided to ahead from the Alameda County end the meeting early because all of Health Department. We have those present were board members. confirmations from Garsow Gems and The June meeting will be in person Minerals, Alberta Gems, Harmony and via Zoom (for those who are not Gems, Afghan Gems, Scott’s Gem
- 6 - MGSCV Petrograph June 2021 Monthly Bulletin of the Mineral and Gem Society of Castro Valley, Inc. and Mineral and Rock Solid Jade Dick and Betty Pankey are hosting a and a few other regulars. Silver Pick Field Trip. What is a Silver Pick field trip? You don't need It was suggested that contracts be a rock hammer, shovel, gads, pick or sent out anyway just to make sure any other tools, just bring your rock the vendors have them re bag and CASH (aka your silver coins) and come collect in our back yard.
After over 30 years of field trips and collecting we are sharing our adventures. and memories. We did the digging, hauling, sorting and cleaning so that all you have to do is choose and pay. We have collected in many of the western states and in a few Midwest and Eastern states. We GEM OF THE MONTH collected: obsidian at Davis Creek and Glass Butte; petrified wood in UT, WY, AZ, CA and WA; geodes and nodules at Wiley Wells, NM, NV, OR, UT, TN and IA; chalcedony roses and nodules at Round Mountain, NM; volcanics in northern CA; travertine in AZ and CA; jasper and agates from all over the place; bertrandite from UT; quartz crystals from AR, CA, and NM; Trona mineral specimens; and a whole lot more. Updated Letter From The Prez By Jodi Minshall We will host this Silver Pick Field Trip on Friday, Saturday, Sunday We are hosting a Silver Pick Field (each weekend), Aug. 6th to 14th; Trip,-again! [email protected] 8:00 AM to 4:00PM and Monday thru Thursday by appointment at our home in
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Pittsburg, CA. Directions: 4310 Spinel (MgAl2O4). Ed. The name Kingsly Dr., Pittsburg, CA 94565 In spinel is believed to derive from the Pittsburg take Buchannan Rd. to Latin word, spina, meaning “thorn,” Suzanne (stoplight) turn south and perhaps in allusion to the pointed follow signs with orange paper plates. shape typical of spinel octahedra. In Go south about 1/2 mile and turn the past, spinel has been referred to right on to Kingsly Dr. For more as “balas ruby”, a reference to the information contact mines of Badakhshan. Many of the [email protected] or 925-439- worlds most famous large "rubies" 7509 are, in fact, red spinel. One of the finest examples of a Badakhshan We will be selling rough rocks by the spinel is the Black Prince’s “Ruby”, a crate, by the flat and by the piece; 170-ct. stone which is mounted in the slabs by the piece and by the flat; front of the Imperial State Crown of minerals and specimens by the flat Great Britain. It is on public display and by the piece; garden rocks by the at the Tower of London Other fine piece. examples of these Badakhshan spinels can be found in some of the In addition to rocks and minerals most famous gem collections in the there are: tumblers and equipment, world. Perhaps the largest single tools, supplies, grit & polish, books, grouping is in the Crown Jewels of posters, findings, books and Iran in Teheran. Others can be found magazines, T-Shirts, stained glass in the Kremlin in Moscow. Spinel is and much, much more. found as a metamorphic mineral and Bring your pick-up truck and your also as a primary mineral in rare Silver Pick and join us in August for mafic igneous rocks. In these igneous two weekends of Rockhound fun. rocks, the magmas are relatively deficient in alkalis relative to Dick and Betty Pankey aluminum, and aluminium oxide may form as the mineral corundum or may
combine with magnesia to form spinel. Gem spinel forms in the same rocks and by the same processes that
- 8 - MGSCV Petrograph June 2021 Monthly Bulletin of the Mineral and Gem Society of Castro Valley, Inc. produce gem corundum. Throughout the spinel crystal structure are the history, spinel has been confused ore minerals magnetite (Fe2+Fe3+ with ruby. In part, this is because 2O4) and chromite (Fe2+Cr2O4), spinel is often found in the same neither of which is a gem material. deposits. Gem spinel is a magnesium Gem spinel is usually quite close in aluminum oxide, while ruby composition to Mg, Al spinel, but (corundum) is an aluminum oxide. In contains small amounts of Fe, Zn, and deposits where both ruby and red Cr that act as chromophores and spinel are found, spinel is typically account for the wide range of more common than ruby. This is possible colors.Red and pink spinel is because, when both magnesium and colored by trace quantities of Cr. aluminum are present, spinel grows. Blue, violet, orange and green spinel Only after the magnesium is by Fe. Zn, Cr, and Co (rare) are also exhausted, does ruby get a chance to present in some blue, violet and crystallize. In addition, both ruby and purple stones. Important members of red spinel owe their color to the the spinel group include: Spinel – same Cr+3 ion. Spinel crystallizes in MgAl2O4, Gahnite - ZnAl2O4 the isometric system; common crystal Franklinite - (Fe,Mn,Zn)(Fe,Mn)2O4 forms are octahedrons, usually Chromite - (Fe·Mg)Cr2O4 Magnetite twinned. It has an imperfect - Fe3O4 Hercynite - FeAl2O4 octahedral cleavage and a conchoidal Ulvöspinel - TiFe2O4 Jacobsite - fracture. Its hardness is 8, its MnFe2O4 Trevorite - NiFe2O4 specific gravity is 3.5-4.1 and it is Ringwoodite - SiMg2O4, Red spinel transparent to opaque with a vitreous has always resided in the shadow of to dull lustre. Spinel, like garnet and ruby, with the result that prices are tourmaline, is a mineral name that just a fraction of what the equivalent refers to a group of minerals all ruby would cost. Spinel colored by having the same crystal structure. cobalt is one of the delights of the Members within the group differ by gem kingdom. Prices of these intense containing varying amounts of Fe, Cr, cobalt-blue spinels can rival, or even Zn, Mn and Ni that substitute for Mg exceed, those for the finest reds. and Al in the crystal lattice. Probably Because synthetic spinels are often the most familiar minerals that have used for imitation birthstone rings,
- 9 - MGSCV Petrograph June 2021 Monthly Bulletin of the Mineral and Gem Society of Castro Valley, Inc. many people think “synthetic” when and comparison with corundum and they hear the name “spinel.” This is synthetic spinel. Detractors from unfortunate, for a fine gem spinel is value are brownish or Grey overtones, one of nature’s most beautiful and or a muddy color, particularly in reds rare treasures. In fact, the main and blues. Spinel (Continued) In thing holding back greater terms of clarity, spinel is often recognition for spinel is rarity. In cleaner than ruby. However, the very addition to red, pink, orange and blue, finest reds are so rare that some spinel is found in a myriad of other clarity defect is almost always colors. These are generally termed present (usually fractures). Included “fancy” spinels, and occur most often crystals are quite common in spinel. in shades of mauve, violet, purple and Many stones display natural iron- blue-green. As with other colored oxide stains in their fractures. Due stones, depth and purity of color and to the octahedral nature of spinel clarity are highly prized. Reds and rough, the most common shape seen pinks are apparently the most is the cushion. Rounds are also seen, expensive, closely followed by as are other shapes, such as the lavender and blues. In the red hues, emerald cut. Lack of cleavage and ruby-like colored spinel has sky pleochroism make these relatively rocketed in price and popularity, simple stones to cut. While faceted directly followed by hot pink and spinels of 100 carats or greater are padparadscha colors. The price trend known, top red or blue stones in sizes with color seems to follow sapphire. above five carats are rare. Fancy Good gem spinel in any color spinels in sizes up to 20 carats or (particularly pinks and reds) in sizes more are generally available. True of 3 carats or above is very rare spinel has long been found in the (rarer than ruby or sapphire). Several gemstonebearing gravel of Sri Lanka authors state that given the rarity and in limestones of Myanmar and and beauty of good pink and red Thailand. The best red, pink and spinel these stones are highly orange spinels originate from the rich undervalued and should continue to gem gravels of Burma’s Mogok Stone increase in price. Prices have Tract. The best blue and violet historically suffered from confusion spinels are found in Sri Lanka
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(Ceylon). Gem spinel is also found in spinel may be as high as 1.74, Zn-rich Vietnam, the Pamir mountains of as high as 1.805. Synth. spinel has a Tajikistan, Tanzania and Madagascar. noticeably different R.I. of Black spinel is mined in Thailand (at 1.727+0.001. Birefringence: none, Bo Ploi, Kanchanaburi). Specimens isotropic. Synthetic spinel often from Burma’s Mogok Stone Tract are shows a patchy A.D.R.. Dispersion: often so perfect that they are medium, 0.02. MGSCV Petrograph - mounted in jewelry as is. Such stones November 2007 - 8 - Spinel are termed nat thwe (‘spirit (Continued) U.V. Fluorescence: polished’). Synthetic spinel has been strongest under long wavelength u.v. produced by the flame fusion weak to absent in short wavelength (Verneuil) process since about 1909 u.v. Synthetic spinel may often show and is widely used as a corundum, a bright blue, chalky green, or red diamond, and chrysoberyl imitation. fluorescence in short wavelength It is made in a variety of colors, some u.v.light. Trip Report – Sheldon, of which (yellow) are not found in Virgin, Plush and Hayden, Part 3. Mike nature, and has also been grown in Tice The temperatures were in the Russia by the flux process in red and high 80’s and the wind taking a rest cobalt-blue colors All differ from as I pulled into the Spectrum Mine natural spinel in chemical makeup and parked the bus under a cloudy (more Al than Mg in comparison to blue sky. All the available parking was naturals). This difference is taken, and I was relegated to a spot reflected in the R.I. and S.G., which “in the sticks”. With the exception of are consequently valuable properties the off-limits main pit, it seemed in distinguishing naturals from that all remaining mounds, pits, piles synthetics, or synthetic spinel from and conveyors were well attended to corundum. Specific Gravity varies by erstwhile treasure seekers. with composition; most gem varieties Children were in abundance, either are in the range 3.58-3.61. Zn-rich working the sifters under the spinel (rare) can be as high as 4.40. watchful eyes of their fathers and Synthetic spinel has an S.G. of 3.63- occasionally being yelled at, or 3.64. Refractive Index is about 1.72 running about aggravating the other for most natural gem material; red miners and occasionally being yelled
- 11 - MGSCV Petrograph June 2021 Monthly Bulletin of the Mineral and Gem Society of Castro Valley, Inc. at. Jessica waved as I drove by her opal to be had there but had no idea store, but she was busy with where to look. This fellow said that customers and it was a while before he had to “hang off a rope 30 feet she was free. Chris was his usual down off the top of the Mountain”. bubbly and happy-golucky self, Seemed a little vague to me and Hart bounding over to vigorously shake my Mountain is a big place. I have topos hand and welcome me back….. NOT ! of the entire area, but did not have Unprepared to actually do some them with me as this was an digging and sifting, I had planned to unplanned stop. I missed out on what ask for a $200.00 conveyor run in will probably be my only chance to hopes of finding some big reds to pinpoint this spot. Trip Report facet. I wanted to see what was (Continued) I’m sure Chris knows, but coming off the belt first, so I hung I have never had much luck getting around and helped pick for two runs. more than a nod and a stare out of Frankly, what I saw didn’t excite me him. Jessica pointed out the missing too much and besides, my back was awning next to her store and the starting to hurt so I decided against flattened shower structure and said it. I was surprised when Jessica said that a week or two before a MAJOR that they didn’t have any big reds for wind had come through and trashed sale; but they had been so busy that the whole place. She was very proud they had not done any mining for the of her tipi; it must have been firmly mine yet. It was getting on in the anchored to escape the wind storm. afternoon by now, and I cruised The miners were an interesting lot, around, watching the miners, talking most of them looked as if they had to Chris’s workers and enjoying the just interrupted a shopping trip to pleasant weather and cloud Safeway. I saw few long shirts or formations. It was either too cloudy hats or the typical miners garb, to pick up anything off the ground or instead lots of cotton shorts, my eyes are shot because I couldn’t sneakers and chubby, sunburned legs. see anything laying around. One of Everyone seemed to be having fun, the workers was showing me some particularly on the conveyor. Chris fire opal that he had mined on Hart has probably heard someone say Mountain. I had heard that there was “This reminds me of the “I Love
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Lucy” episode when Lucy and Ethel only a few to pick from. I was shown worked on the conveyor in the candy a tray with about 50 large stones, of factory” a hundred times. As the day varying color and size. I picked out drew to a close, the miners departed about 10 that had nice color and for their motels in Lakeview and soon looked facetable. She weighed each I was the only one left. The sporadic and performed some calculations, cloud cover made for a gorgeous deducting for waste, and applying sunset, which I enjoyed from the some factor according to color. comfort of my folding chair. As the evening wore on, the staff turned in The number she gave me made me and eventually it seemed as if I was jump, so I reduced it to 4 stones and the only one on the desert. I strained tried again. She said 450, I offered to hear the last of the birds or 400 and we called it a deal. I think it perhaps a distant coyote and was worked out to about 3.00 a carat. certain that I heard the bray of a From the November 2007 Petrograph burro, but saw nothing. Early the next morning I packed up and hit the road before anyone was out and moving around. I had to pass by the Dust Devil on the way out and since BENCH TIPS BY BRAD SMITH they were open and working, I dropped in. I had never been to this None this month mine before and was surprised at the size of the operation. The main pit is huge and there must have been 30 people down in it, scratching at the sides and working the sifting screens. At the main office I asked if there were any big reds for sale. A very sweet lady told me that they had been so busy all summer that they hadn’t had a chance to do much mining of their own, so there were a
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Shop Notes (All shop session’s members only)
MAP TO THE SHOP Monday closed, Lapidary .
MGSCV Tuesday closed, need daytime supervisor 20948A closed, Lapidary,
Wednesday 11AM to 2:00PM, Lapidary Corsair Library open 11AM to noon. Hesperian Blvd. Thursday 10:00 AM to 1:00 PM, Lapidary
Friday closed
Saturday 9 AM to 12:00 PM, Faceting Class 9-12, West Winton To 880 -> Juniors, Clawlter Sakian w/supervisor’s approval, lapidary Our shop: 20948 A Corsair Blvd Library open 10AM to noon. Hayward, CA 94545 Sunday 9:30AM to 12:30 PM, Lapidary (510) 887-9007
SHOP NOTICES:
Email us at [email protected]
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From I 580: Take the A Street exit and go west, turn right on Montgomery Street and go to 22307 Montgomery Street. From I 880: Take the A Street exit and go East. Turn left on Montgomery Street and go to 22307 Montgomery. From Jackson Street: Go north on Mission Boulevard, turn left onto A Street, then right on Montgomery Street and go to 22307 Montgomery Street.
- 15 - MGSCV Petrograph June 2021 Monthly Bulletin of the Mineral and Gem Society of Castro Valley, Inc. Mineral & Gem Society of Castro Valley (MGSCV) Membership Application and Information
Membership is good for one calendar year from January 1st through December 31st. Please fill out and sign the application. Mail the completed form, a check for the dues payable to MGSCV, and a self-addressed, stamped envelope to - MGSCV, Attn: Membership Chair, P.O. Box 2145, Castro Valley, CA 94546.
Your membership is active upon receipt of your check and application. It will be processed and membership cards will be at the shop within 4 weeks. Your email will be added to the list for the Petrograph, our newsletter. Your name will be added to the roster in the lobby at the workshop and in the drawing at the general meetings for cash prizes, if present.
We are a non-profit club whose sole purpose is the education of lapidary arts and geological sciences for all who are interested. No products produced in the shop can be sold for profit. All members should have or be familiar with the MGSCV Handbook. A copy is available for review in the club's lobby or one can be emailed to you by sending a request to [email protected].
Before any member may operate any equipment or take any class, they must have completed an orientation and their first cabochon. To schedule an orientation send an email to [email protected] with your name, phone number, and a good time to call you. During the orientation you will learn about the club and get a tour of the workshop. Monday evenings are reserved for beginners only.
Membership dues cover less than 10% of our annual operating costs. It is our annual show that funds the club, workshop and all activities. *A requirement of membership is that every member must work at the show for a minimum of 4 hours. The show is always held the first full weekend of March, so mark your calendars. The show is fun to work and is the reason we have the best workshop/club in Northern California. Shop services such as rock sawing, casting, special classes (faceting, wire wrap, metal work, etc...) will not be available to members who do not work at the show.
Membership Chairperson Type of Membership(s): _____ new membership _____ renewal membership _____ Lifetime (voted in by the board)
* With Shop privileges Junior Membership NO Shop Privileges
_____ Single - $45 _____ Junior (11-17 with adult) - $1 _____ Single - $35 _____ Couple - $80 _____ Junior (11-17 without adult) - $5 _____ Couple - $60
After July 1st all new membership dues are half (½)
Name(s) (Please print all the names.) Adults: ______
Juniors: ______
Address: ______
City: ______State: ______Zip: ______Phone Number: ______
E-mail Address: ______
(Our monthly newsletter, the Petrograph, will be emailed to this address.)
Occupational Skills: ______
(Sometimes we are in need of advice and\or help in regards to electrical, plumbing, mechanical, clerical or other skills.)
Confidentiality: (check all that apply) I do not want my _____ phone _____ email printed in the roster at the shop.
I agree with the By-laws and rules of the Mineral & Gem Society of Castro Valley (MGSCV).
Members Signatures: ______Mineral & Gem Society of Castro Valley (MGSCV) Membership Application and Information
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