Nature's Art: Geodes from the Collection of Robert R. Wiener
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Download PDF About Minerals Sorted by Mineral Name
MINERALS SORTED BY NAME Here is an alphabetical list of minerals discussed on this site. More information on and photographs of these minerals in Kentucky is available in the book “Rocks and Minerals of Kentucky” (Anderson, 1994). APATITE Crystal system: hexagonal. Fracture: conchoidal. Color: red, brown, white. Hardness: 5.0. Luster: opaque or semitransparent. Specific gravity: 3.1. Apatite, also called cellophane, occurs in peridotites in eastern and western Kentucky. A microcrystalline variety of collophane found in northern Woodford County is dark reddish brown, porous, and occurs in phosphatic beds, lenses, and nodules in the Tanglewood Member of the Lexington Limestone. Some fossils in the Tanglewood Member are coated with phosphate. Beds are generally very thin, but occasionally several feet thick. The Woodford County phosphate beds were mined during the early 1900s near Wallace, Ky. BARITE Crystal system: orthorhombic. Cleavage: often in groups of platy or tabular crystals. Color: usually white, but may be light shades of blue, brown, yellow, or red. Hardness: 3.0 to 3.5. Streak: white. Luster: vitreous to pearly. Specific gravity: 4.5. Tenacity: brittle. Uses: in heavy muds in oil-well drilling, to increase brilliance in the glass-making industry, as filler for paper, cosmetics, textiles, linoleum, rubber goods, paints. Barite generally occurs in a white massive variety (often appearing earthy when weathered), although some clear to bluish, bladed barite crystals have been observed in several vein deposits in central Kentucky, and commonly occurs as a solid solution series with celestite where barium and strontium can substitute for each other. Various nodular zones have been observed in Silurian–Devonian rocks in east-central Kentucky. -
CREEDITE from NEVADA Wrrrrrlr F. Fosnac,L Uni.Ted. States Ivati.Onal
CREEDITE FROM NEVADA WrrrrRlr F. Fosnac,l Uni.ted.States IVati.onal Muspum. The mineial creedite was first found by Esper S. Larsen in the fluorite mines of Wagon Wheel Gap, CreedeQuadrangle, Colorado, and describedby Larsen2and Wells as a new mineral speciesof the composition CaSOn.2CaF z. 2AI(F,OH)a. 2HzO. Later, better ma- terial was obtained and the mineral further investigated by the present writerr confirming the composition as found by Wells and determining the crystal symmetry and elements.The mineral was found to be monoclinic. Several crystal habits were found, all pris- matic but differing somewhat in the relative sizes of the terminaL faces. The mineral is associated with fluorite or embedded in a white halloysite clay. During geological field work for the U. S. Geological Survey in the Tonopah Quadrangle,Nevada, Mr. StanleyH. Cathcart visited the small gold camp of Granite (now abandoned), northwest of Tonopah in the northwestern corner of the Tonopah quadrangle and collected some specimensof the high grade ore found in the small veins of the district. These specimens showed scattered bunchesof a colorlessprismatic mineral which were determined by Dr. Clarence S. Ross, from their optical properties, to be creedite. The specimens were then turned over to the present writer for further study and are now in the collections of the U. S. National Museum (No.96489). The two specimens suggest that the gold bearing deposits of Granite are fluorite-quartz veins with free gold. The specimensare from the oxidized zone and are discolored by a clayey manganese wad. Visible flakes of gold are embedded both in the wad and in the fluorite. -
Tiger's Eye Is Not a Pseudomorph Glenn Morita in the Early 1800’S, Mineralogists Recognized That Tiger’S Eye Was a Fibrous Variey of Quartz
Minutes of the 05/20/03 Westside Board Meeting VP Stu Earnst opened the meeting at 7:31pm. Treasurer’s report read by Kathy Earnst. Minutes approved as published in the newsletter. Old business: Lease on Walker valley discussed. The expiration notice was sent but we are not sure who it went to. We do not see any obstacle to renewal as communication between the council and DNR are open and ongoing. Special thanks, to DNR representative, Laurie Bergvall and DNR staff for their time and effort in hearing our concerns and working towards mutually beneficial solutions on the Walker Valley issues. Sign production is on hold until the sign committee decides where and what the signs will say. We have decided that they will not be on the gate but separate from it. There will be a gate going up at Walker Valley but we will have access to that lock and it will probably be a combo type of thing that we can easily give to other rockhound clubs going there. Talked about the possibility of posing the combo on website but that will depend on the type of gate they put up and what ends up being possible with the mechanics of that gate. New business: Thank you from Bob Pattie and Ed Lehman to Bruce Himko and AAA Printing for donation of the paper. Thank you to Danny Vandenberg for providing sample Walker Valley Material to DNR to show the value of the material we are trying to preserve and enjoy. Bob Pattie is pursuing with the retrieval of our state seized funds through the unclaimed property process. -
Washington State Minerals Checklist
Division of Geology and Earth Resources MS 47007; Olympia, WA 98504-7007 Washington State 360-902-1450; 360-902-1785 fax E-mail: [email protected] Website: http://www.dnr.wa.gov/geology Minerals Checklist Note: Mineral names in parentheses are the preferred species names. Compiled by Raymond Lasmanis o Acanthite o Arsenopalladinite o Bustamite o Clinohumite o Enstatite o Harmotome o Actinolite o Arsenopyrite o Bytownite o Clinoptilolite o Epidesmine (Stilbite) o Hastingsite o Adularia o Arsenosulvanite (Plagioclase) o Clinozoisite o Epidote o Hausmannite (Orthoclase) o Arsenpolybasite o Cairngorm (Quartz) o Cobaltite o Epistilbite o Hedenbergite o Aegirine o Astrophyllite o Calamine o Cochromite o Epsomite o Hedleyite o Aenigmatite o Atacamite (Hemimorphite) o Coffinite o Erionite o Hematite o Aeschynite o Atokite o Calaverite o Columbite o Erythrite o Hemimorphite o Agardite-Y o Augite o Calciohilairite (Ferrocolumbite) o Euchroite o Hercynite o Agate (Quartz) o Aurostibite o Calcite, see also o Conichalcite o Euxenite o Hessite o Aguilarite o Austinite Manganocalcite o Connellite o Euxenite-Y o Heulandite o Aktashite o Onyx o Copiapite o o Autunite o Fairchildite Hexahydrite o Alabandite o Caledonite o Copper o o Awaruite o Famatinite Hibschite o Albite o Cancrinite o Copper-zinc o o Axinite group o Fayalite Hillebrandite o Algodonite o Carnelian (Quartz) o Coquandite o o Azurite o Feldspar group Hisingerite o Allanite o Cassiterite o Cordierite o o Barite o Ferberite Hongshiite o Allanite-Ce o Catapleiite o Corrensite o o Bastnäsite -
C:\Documents and Settings\Alan Smithee\My Documents\MOTM
I`mt`qx1/00Lhmdq`knesgdLnmsg9Rbnkdbhsd This month’s mineral, scolecite, is an uncommon zeolite from India. Our write-up explains its origin as a secondary mineral in volcanic host rocks, the difficulty of collecting this fragile mineral, the unusual properties of the zeolite-group minerals, and why mineralogists recently revised the system of zeolite classification and nomenclature. OVERVIEW PHYSICAL PROPERTIES Chemistry: Ca(Al2Si3O10)A3H2O Hydrous Calcium Aluminum Silicate (Hydrous Calcium Aluminosilicate), usually containing some potassium and sodium. Class: Silicates Subclass: Tectosilicates Group: Zeolites Crystal System: Monoclinic Crystal Habits: Usually as radiating sprays or clusters of thin, acicular crystals or Hairlike fibers; crystals are often flattened with tetragonal cross sections, lengthwise striations, and slanted terminations; also massive and fibrous. Twinning common. Color: Usually colorless, white, gray; rarely brown, pink, or yellow. Luster: Vitreous to silky Transparency: Transparent to translucent Streak: White Cleavage: Perfect in one direction Fracture: Uneven, brittle Hardness: 5.0-5.5 Specific Gravity: 2.16-2.40 (average 2.25) Figure 1. Scolecite. Luminescence: Often fluoresces yellow or brown in ultraviolet light. Refractive Index: 1.507-1.521 Distinctive Features and Tests: Best field-identification marks are acicular crystal habit; vitreous-to-silky luster; very low density; and association with other zeolite-group minerals, especially the closely- related minerals natrolite [Na2(Al2Si3O10)A2H2O] and mesolite [Na2Ca2(Al6Si9O30)A8H2O]. Laboratory tests are often needed to distinguish scolecite from other zeolite minerals. Dana Classification Number: 77.1.5.5 NAME The name “scolecite,” pronounced SKO-leh-site, is derived from the German Skolezit, which comes from the Greek sklx, meaning “worm,” an allusion to the tendency of its acicular crystals to curl when heated and dehydrated. -
7563/11 HGN/Tt 1 DG H 2B COUNCIL of the EUROPEAN
COUNCIL OF Brussels, 10 March 2011 THE EUROPEAN UNION 7563/11 COPEN 44 EJN 20 EUROJUST 29 NOTE from: Bulgarian Permanent Representation to Delegations Subject: Council Framework Decision 2006/783/JHA of 6 October 2006 on the application of the principle of mutual recognition to confiscation orders – the Republic of Bulgaria Delegations will find enclosed the notification made by Bulgaria in relation to the abovementioned framework decision. _______________ 7563/11 HGN/tt 1 DG H 2B EN DECLARATIONS AND NOTIFICATIONS BY THE REPUBLIC OF BULGARIA IN ACCORDANCE WITH ARTICLE 3, ARTICLE 7(5) AND ARTICLE 19 OF COUNCIL FRAMEWORK DECISION 2006/783/JHA OF 6 OCTOBER 2006 ON THE APPLICATION OF THE PRINCIPLE OF MUTUAL RECOGNITION TO CONFISCATION ORDERS The Republic of Bulgaria hereby notifies the General Secretariat of the Council of the following declarations and notifications pursuant to Council Framework Decision 2006/783/JHA of 6 October 2006 on the application of the principle of mutual recognition to confiscation orders and the Law on the recognition, execution and transmission of decisions on confiscation or seizure and decisions on the enforcement of financial penalties adopted by the National Assembly of the Republic of Bulgaria on 11 February 2010 (published in the State Journal of the Republic of Bulgaria No 15 of 23 February 2010), which transposes the abovementioned Framework Decision into the law of the Republic of Bulgaria. 1) Notification pursuant to Article 3 of Framework Decision 2006/783/JHA (determination of the competent authorities): (а) When the Republic of Bulgaria is the executing State: The competent authorities with regard to the recognition of confiscation or seizure orders shall be the provincial courts and Sofia City Court. -
The Added Value Formed by the Alternative in Tourism
BOOK OF PROCEEDINGS VOL. I – INTERNATIONAL CONFERENCE ON TOURISM & MANAGEMENT STUDIES – ALGARVE 2011 THE ADDED VALUE FORMED BY THE ALTERNATIVE IN TOURISM Ventsislav Statev Statev PhD, Marketing and Tourism Department, St Cyril and Methodius University of Veliko Turnovo [email protected] ABSTRACT The tourist clusters in Bulgaria do not enjoy considerable success. The status of the alternative in tourism has not reached the desired level. Often do the interested in tourism parties in Bulgaria regard the quantity of the added value, formed by the traditional /mass/ types and forms of tourism, as equal to the one, formed by the alternative types and forms of tourism /ATFT/. The insignificant income, realized by the supply of newly-introduced alternative types and forms in tourism, tends to discourage the few eager to risk investors. Supply is not effectively supported by the actions of the ‘state power’ sector. Scientists in Bulgaria argue about the uncertain and controversial issues regarding the essence of the alternative types and forms of tourism /ATFT/. The question ‘Who forms the added value in this segment and through what means?’ needs to get an answer so as the conception, regarding the future development of the alternative in tourism in Bulgaria, to be reconsidered. Thus the present article introduces the results and systematizes the conclusions from the 2-year work on the scientific project of St Cyril and Methodius University of Veliko Turnovo. The article clarifies the concept system and introduces the criteria for the distinction of the newly-introduced from the already established ATFT. The resources, being factors for the development of ATFT in the tourist cluster of Smolyan, as well as the subjects and the mechanism for the formation of the added value in the examined cluster, are identified. -
Minerals of the San Luis Valley and Adjacent Areas of Colorado Charles F
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/22 Minerals of the San Luis Valley and adjacent areas of Colorado Charles F. Bauer, 1971, pp. 231-234 in: San Luis Basin (Colorado), James, H. L.; [ed.], New Mexico Geological Society 22nd Annual Fall Field Conference Guidebook, 340 p. This is one of many related papers that were included in the 1971 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. -
AMETHYSTINE CHALCEDONY by James E
NOTES ANDa NEW TECHNIQUES AMETHYSTINE CHALCEDONY By James E. Shigley and John I. Koivula A new amethystine chalcedony has been discovered in that this is one of the few reported occurrences Arizona. The material, marketed under the trade name where an amethyst-like, or amethystine, chalced- "Damsonite," is excellent for both jewelry and carv- ony has been found in quantities of gemological ings. The authors describe thegemological properties of importance (see Frondel, 1962). Popular gem this new type of chalcedony, and report the effects of hunters' guides, such as MacFall (1975) and heat treatment on it. Although this purple material is Anthony et al. (19821, describe minor occurrences apparently b.new color type of chalcedony, it has the same gemological properties as the other better-known in Arizona of banded purple agate, but give no types. It corresponds to a microcrystalline form of ame- indication of deposits of massive purple chalced- thyst which, when heat treated at approximately ony similar to that described here. This article 500°C becomes yellowish orange, as does some briefly summarizes the occurrence, gemological single-crystal amethyst. properties, and reaction to heat treatment of this material. LOCALITY AND OCCURRENCE The purple chalcedony described here has been Chalcedony is a microcrystalline form of quartz found at a single undisclosed locality in central that occurs in a wide variety of patterns and colors. Arizona. It was first noted as detrital fragments in Numerous types of chalcedony, such as chryso- the bed of a dry wash that cuts through a series of prase, onyx, carnelian, agate, and others, have been sedimentary rocks. -
Origin of Fibrosity and Banding in Agates from Flood Basalts: American Journal of Science, V
Agates: a literature review and Electron Backscatter Diffraction study of Lake Superior agates Timothy J. Beaster Senior Integrative Exercise March 9, 2005 Submitted in partial fulfillment of the requirements for a Bachelor of Arts degree from Carleton College, Northfield, Minnesota. 2 Table of Contents AGATES: A LITERATURE REVEW………………………………………...……..3 Introduction………………....………………………………………………….4 Structural and compositional description of agates………………..………..6 Some problems concerning agate genesis………………………..…………..11 Silica Sources…………………………………………..………………11 Method of Deposition………………………………………………….13 Temperature of Formation…………………………………………….16 Age of Agates…………………………………………………………..17 LAKE SUPERIOR AGATES: AN ELECTRON BACKSCATTER DIFFRACTION (EBSD) ANALYSIS …………………………………………………………………..19 Abstract………………………………………………………………………...19 Introduction……………………………………………………………………19 Geologic setting………………………………………………………………...20 Methods……………………………………………………...…………………20 Results………………………………………………………….………………22 Discussion………………………………………………………………………26 Conclusions………………………………………………….…………………26 Acknowledgments……………………………………………………..………………28 References………………………………………………………………..……………28 3 Agates: a literature review and Electron Backscatter Diffraction study of Lake Superior agates Timothy J. Beaster Carleton College Senior Integrative Exercise March 9, 2005 Advisor: Cam Davidson 4 AGATES: A LITERATURE REVEW Introduction Agates, valued as semiprecious gemstones for their colorful, intricate banding, (Fig.1) are microcrystalline quartz nodules found in veins and cavities -
Apophyllite-(Kf)
December 2013 Mineral of the Month APOPHYLLITE-(KF) Apophyllite-(KF) is a complex mineral with the unusual tendency to “leaf apart” when heated. It is a favorite among collectors because of its extraordinary transparency, bright luster, well- developed crystal habits, and occurrence in composite specimens with various zeolite minerals. OVERVIEW PHYSICAL PROPERTIES Chemistry: KCa4Si8O20(F,OH)·8H20 Basic Hydrous Potassium Calcium Fluorosilicate (Basic Potassium Calcium Silicate Fluoride Hydrate), often containing some sodium and trace amounts of iron and nickel. Class: Silicates Subclass: Phyllosilicates (Sheet Silicates) Group: Apophyllite Crystal System: Tetragonal Crystal Habits: Usually well-formed, cube-like or tabular crystals with rectangular, longitudinally striated prisms, square cross sections, and steep, diamond-shaped, pyramidal termination faces; pseudo-cubic prisms usually have flat terminations with beveled, distinctly triangular corners; also granular, lamellar, and compact. Color: Usually colorless or white; sometimes pale shades of green; occasionally pale shades of yellow, red, blue, or violet. Luster: Vitreous to pearly on crystal faces, pearly on cleavage surfaces with occasional iridescence. Transparency: Transparent to translucent Streak: White Cleavage: Perfect in one direction Fracture: Uneven, brittle. Hardness: 4.5-5.0 Specific Gravity: 2.3-2.4 Luminescence: Often fluoresces pale yellow-green. Refractive Index: 1.535-1.537 Distinctive Features and Tests: Pseudo-cubic crystals with pearly luster on cleavage surfaces; longitudinal striations; and occurrence as a secondary mineral in association with various zeolite minerals. Laboratory analysis is necessary to differentiate apophyllite-(KF) from closely-related apophyllite-(KOH). Can be confused with such zeolite minerals as stilbite-Ca [hydrous calcium sodium potassium aluminum silicate, Ca0.5,K,Na)9(Al9Si27O72)·28H2O], which forms tabular, wheat-sheaf-like, monoclinic crystals. -
Smartimpact Smolyan
SMOLYAN MUNICIPALITY INTEGRATED ACTION PLAN FOR INTELLIGENT DEVELOPMENT OF SMOLYAN MUNICIPALITY Project SmartImpact, URBACT III Programm 2018 г. CONTENT 1. Forewords ................................................................................... Fehler! Textmarke nicht definiert. 2. Smart Smolyan ................................................................................................................................. 4 3. Why Smolyan needs an Integrated Action Plan for Smart Development......................................... 5 4. SmartImpact project ........................................................................................................................ 6 5. SmartImpact in Smolyan .................................................................................................................. 7 6. The Smolyan Innovation District – is it possible, how, where, when: .............................................. 8 7. Who is Involved: ............................................................................................................................ 18 8. Action Plan Methodology and Approach ....................................................................................... 19 9. Action Plan Summary ..................................................................................................................... 19 10. Smolyan Action Plan and five SmartImpact Themes .................................................................. 20 11. Monitoring ................................................................................................................................