Lapidary Journal Jewelry Artist March 2012
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Magnetite and Hematite Intheiron Ores of the Kiruna Type and Some Other Iron Ore Types
SERIE C NR 625 AVHANDLINGAR OCH UPPSATSER ARSBOK 6 1 NR 10 RUDYARD FRIETSCH THE RELATIONSHIP BETWEEN MAGNETITE AND HEMATITE INTHEIRON ORES OF THE KIRUNA TYPE AND SOME OTHER IRON ORE TYPES STOCKHOLM 1967 SVERIGES GEOLOGISKA UNDERSOKNING SERIE C NR 625 ARSBOK 61 NR 10 RUDYARD FKIETSCH THE RELATIONSHIP BETWEEN MAGNETITE AND HEMATITE IN THE IRON ORES OF THE KIRUNA TYPE AND SOME OTHER IRON ORE TYPES STOCKHOLM 1967 Manuscript received May 8th, 1967 Editor: Per H. Lundegårdh Stockholm 1967 Kungl. Boktryckeriet P. A. Norstedt & Söner CONTENTS Abstracc ................................. Introdiiction ................................ The relationship between magnetite and hernatite in kon ores of the Kiruna type ... Northern Sweden ............................ Central Sweden ............................ Chile .................................. Mexico ................................. United States ............................. The formation of'hematite in iron ores of the Kiruna type ............ Examples of the occurrence of hematite in connection with metasomalic processes ... The relationship between magnetite and hematite in ~henon-apatitic irvri ores of Central Sweden .................................. Conclusions ................................ Acknowledgements ............................. References ................................. 7 1.670383 . SGU. Frietsch ABSTRACT I11 the magmatic iron ores of thc Kiruna type the primary iron oxide is inostly magnetite. Hematite is rather common and except when clue to superficial weathering is a later metasomatic alteration of the magnetite. The alteration in the wall-rock (and to a less exteiit in the orc) has given rise to new minerals, e. g. quarte, muscovite, chlorite, calcite, clay minerals and small amounts of tourmaline, fluoritc, barite, allanite and zircoii. It is a later phase of the main ore- forming process. The tcmpcraturc at which the alteration took place is, on account of the niiner- al paragenesis in the altered wall-rock, believed to have been moderate tc. -
Treatise on Combined Metalworking Techniques: Forged Elements and Chased Raised Shapes Bonnie Gallagher
Rochester Institute of Technology RIT Scholar Works Theses Thesis/Dissertation Collections 1972 Treatise on combined metalworking techniques: forged elements and chased raised shapes Bonnie Gallagher Follow this and additional works at: http://scholarworks.rit.edu/theses Recommended Citation Gallagher, Bonnie, "Treatise on combined metalworking techniques: forged elements and chased raised shapes" (1972). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by the Thesis/Dissertation Collections at RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. TREATISE ON COMBINED METALWORKING TECHNIQUES i FORGED ELEMENTS AND CHASED RAISED SHAPES TREATISE ON. COMBINED METALWORKING TECHNIQUES t FORGED ELEMENTS AND CHASED RAISED SHAPES BONNIE JEANNE GALLAGHER CANDIDATE FOR THE MASTER OF FINE ARTS IN THE COLLEGE OF FINE AND APPLIED ARTS OF THE ROCHESTER INSTITUTE OF TECHNOLOGY AUGUST ( 1972 ADVISOR: HANS CHRISTENSEN t " ^ <bV DEDICATION FORM MUST GIVE FORTH THE SPIRIT FORM IS THE MANNER IN WHICH THE SPIRIT IS EXPRESSED ELIEL SAARINAN IN MEMORY OF MY FATHER, WHO LONGED FOR HIS CHILDREN TO HAVE THE OPPORTUNITY TO HAVE THE EDUCATION HE NEVER HAD THE FORTUNE TO OBTAIN. vi PREFACE Although the processes of raising, forging, and chasing of metal have been covered in most technical books, to date there is no major source which deals with the functional and aesthetic requirements -
Castingmetal
CASTING METAL Sophistication from the surprisingly simple with a room casting. Hmmmm. I I asked Beth where in the world she BROOM pored through every new and learned how to cast metal using the Bvintage metals technique book Brad Smith offers a Broom business end of a broom. “It’s an old BY HELEN I. DRIGGS on my shelf and I couldn’t find a men- Casting Primer, page 32, hobbyist trick. I learned about it from a tion of the process anywhere. This and a project for using very talented guy named Stu Chalfant the elements you cast. transformed my curiosity into an who gave a demo for my rock group TRYBROOM-CAST IT YOURSELFE urgent and obsessive quest. I am an G — the Culver City [California] Rock & A TURQUOISE PENDANT P information junkie — especially Mineral Club. This was six or seven when it comes to studio jewelry — years ago, and I instantly fell in love and I love finding out new, old fash- with the organic, yet orderly shapes.” ioned ways of doing things. But, I am also efficient. So I A few years passed before Beth tried the technique her- knew the best way to proceed was to seek out Beth self. “The first of our club members to experiment with it Rosengard, who has transformed this delightfully low-tech was Brad 34Smith, who now includes the technique in the approach to molten metal into a sophisticated level of artis- classes he teaches at the Venice Adult School.” After admir- tic expression. I had made a mental note to investigate ing some early silver castings Brad had made, she begged broom casting when I saw her winning earrings in the 2006 him for a sample and later incorporated his work into her Jewelry Arts Awards. -
Download Course Outline for This Program
Program Outline 434- Jewellery and Metalwork NUNAVUT INUIT LANGUAGES AND CULTURES Jewelry and Metalwork (and all fine arts) PROGRAM REPORT 434 Jewellery and Metalwork Start Term: No Specified End Date End Term: No Specified End Date Program Status: Approved Action Type: N/A Change Type: N/A Discontinued: No Latest Version: Yes Printed: 03/30/2015 1 Program Outline 434- Jewellery and Metalwork Program Details 434 - Jewellery and Metalwork Start Term: No Specified End Date End Term: No Specified End Date Program Details Code 434 Title Jewellery and Metalwork Start Term No Specified End Date End Term No Specified End Date Total Credits Institution Nunavut Faculty Inuit Languages and Cultures Department Jewelry and Metalwork (and all fine arts) General Information Eligible for RPL No Description The Program in Jewellery and Metalwork will enable students to develop their knowledge and skills of jewellery and metalwork production in a professional studio atmosphere. To this end the program stresses high standards of craftship and creativity, all the time encouraging and exposing students to a wide range of materials, techniques and concepts. This program is designed to allow the individual student to specialize in an area of study of particular interest. There is an emphasis on creative thinking and problem-solving throughout the program.The first year of the program provides an environment for the students to acquire the necessary skills that will enable them to translate their ideas into two and three dimensional jewellery and metalwork. This first year includes courses in: Drawing and Design, Inuit Art and Jewellery History, Lapidary and also Business and Communications. -
Tourmaline Announces Formation of Topaz Energy, Unlocking Value in Tourmaline's Significant Asset Base
NOT FOR DISTRIBUTION IN THE UNITED STATES OR DISSEMINATION OVER UNITED STATES NEWSWIRE SERVICES. NEWS RELEASE OCTOBER 10, 2019 TOURMALINE ANNOUNCES FORMATION OF TOPAZ ENERGY, UNLOCKING VALUE IN TOURMALINE'S SIGNIFICANT ASSET BASE Calgary, Alberta - Tourmaline Oil Corp. (TSX:TOU) ("Tourmaline") is pleased to announce the formation of Topaz Energy Corp. (“Topaz”), a new private royalty and infrastructure energy company. Tourmaline will sell to Topaz: a royalty interest on Tourmaline lands, a non-operated interest in two of Tourmaline‘s existing 19 natural gas processing plants, and a contracted interest in a portion of Tourmaline‘s current third-party revenue for total cash and share consideration of $775 million. Topaz will be a low-risk, high-distribution, hybrid royalty and infrastructure energy company with long-term growth plans. Topaz will be capitalized initially with a $150 to $200 million third-party equity private placement, with Tourmaline retaining a 75% to 81% equity ownership interest. Tourmaline intends to reduce a portion of its ownership as Topaz participates in future acquisition activities and an anticipated Topaz public liquidity event in 2020. The initial acquisition from Tourmaline is expected to generate approximately $90 million in revenue(1) in 2020, of which it is anticipated approximately 75% will be paid out in quarterly dividends ($0.80 per share annually, 8% yield). The assets to be acquired from Tourmaline will consist of three components: 1. A gross overriding royalty (“GORR”) on natural gas, oil, and condensate production on 100% of Tourmaline’s existing lands (approximately 2.2 million net acres). 2. A non-operated 45% working interest in two natural gas processing plants underpinned by long-term take- or-pay commitments from Tourmaline. -
Intergrown Emerald Specimen from Chivor Tity Was Confirmed by Raman Spectroscopy
Editor Nathan Renfro Contributing Editors Elise A. Skalwold and John I. Koivula Intergrown Emerald Specimen from Chivor tity was confirmed by Raman spectroscopy. The inclusion exhibited a well-formed hexagonal prismatic shape with Colombia’s Chivor emerald mines are located in the east- pyramid-like termination (figure 2). Although intergrowth ern zone of the Eastern Cordillera range of the Andes emerald crystals have been described and documented in Mountains. Chivor translates to “green and rich land” in the literature several times (G. Grundmann and G. Giu- Chibcha, the language of the indigenous people who were liani, “Emeralds of the world,” in G. Giuliani et al., Eds., already mining emerald more than 500 years ago, before Emeralds of the World, extraLapis English, No. 2, 2002, pp. the arrival of the Spanish conquistadors (D. Fortaleché et al., “The Colombian emerald industry: Winds of change,” Fall 2017 G&G, pp. 332–358). Chivor emeralds exhibit a bright green color with a tint of blue; they have relatively Figure 1. An emerald crystal inclusion measuring high clarity and fewer inclusions than emeralds found in ~2.67 × 2.71 × 5.43 mm is found inside this large Colombia’s western belt. emerald specimen (18.35 × 10.69 × 9.79 mm) from Colombia’s Chivor mine. Photo by John Jairo Zamora. The authors recently examined a rough emerald crystal specimen (figure 1), measuring 18.35 × 10.69 × 9.79 mm, reportedly from Chivor. This crystal weighed 3.22 g (16.10 ct) and had a prismatic hexagonal crystal shape. Standard gemological examination confirmed the gemstone to be emerald, and ultraviolet/visible/near-infrared (UV-Vis-NIR) spectroscopy showed a classic Colombian emerald absorp- tion spectrum. -
Get Reactive in System 96!
Get Reactive in System 96! Uroboros has created two unique glass formulas for System 96 that are designed to create an interface color, or a reac on, when melted against certain other colors. This occurs when ions from the two adjacent glasses migrate and mingle when the gl asses become hot and ß uid. Given the right glass chemistry, the comingled ions form a very thin colored line, or reac on. Since our formulas react to create a no ceably reddish hue we named them Red Reac ves: as in Red Reac ve Transparent, and Red Reac ve Opal. The primary ingredient needed in a glass to generate a reac on color with our Reac ve glass is Copper. Copper is present in many blue and blue-green glass colors, but in some cases in too low a concentra on to create a no ceable reac on. For simplicity, all System 96 colors have been graded for their poten al to react into three categories: Strong, Medium, and Mild. See them all listed in the chart on the back of this page. You will Þ nd that the intensity of the reac on color will get stronger with longer, ho er, or repeat Þ rings. This is because the copper ions have more me to mingle with their friendly reac ve partners in the adjacent glass. The chart rankings are based on a typical single Þ ring cycle. You could get a Medium reac on from a color graded as Mild by Þ ring it ho er, or Þ ring mul ple mes. -
Neycraft Centrifugal Casting Machine to Be Free from Defects in Material and Workmanship for a Period of Two Years from the Date of Sale
CRUCIBLE SLIDE LEVER COUNTER BALANCE WEIGHT SILICA CRUCIBLE WINDING & LOCKING WARRANTY INVESTMENT FLASK KNOB FLASK RECEIVER WARRANTY: Except with respect to those components parts and uses which are described herein, ASSEMBLY DENTSPLY Neytech warrants the Neycraft Centrifugal Casting Machine to be free from defects in material and workmanship for a period of two years from the date of sale. DENTSPLY Neytech’s liability under this warranty is limited solely to repairing or, at DENTSPLY Neytech’s option, replacing those products included within the warranty which are returned to DENTSPLY Neytech within the applicable warranty period (with shipping charges prepaid), and which are determined by DENTSPLY Neytech to be defective. This warranty shall not apply to any product which has been subject to misuse; negligence; or accident; or misapplied; or modified; or repaired by unauthorized persons; or improperly installed. INSPECTION: Buyer shall inspect the product upon receipt. The buyer shall notify DENTSPLY Neytech in writing of any claims of defects in material and workmanship within thirty days after the buyer discovers or should have discovered the facts upon which such a claim is based. Failure of the SAFETY SHELL buyer to give written notice of such a claim within this time period shall be deemed to be a waiver of such claim. MOUNTING BASE DISCLAIMER: The provisions stated herein represent DENTSPLY Neytech’s sole obligation and exclude all other remedies or warranties, expressed or implied, including those related to MERCHANTABILITY and FITNESS FOR A PARTICULAR PURPOSE. LIMITATION OF LIABILITY: Under no circumstances shall DENTSPLY Neytech be liable to the buyer for any incidental, consequential or special damages, losses or expenses. -
Estate Jewelry Their Signed Work Consistently Fetches a Premium—Sometimes up to Three Times the ESTATE JEWELRY Only Reliable Source
HOW TO BUY Most estate dealers insist that the finest pieces never go on display. In addition JAR workshop at Place Vendôme turns out heirloom pieces that regularly earn two to Deco-era Cartier, the market is perpetually starved for natural (as opposed to cul- to three times their estimates at auction. Other designers to watch include Munich- tured) pearls and über-rare gemstones: Kashmir sapphires, “pigeon’s blood” Burmese based Hemmerle and New York’s Taffin, by James de Givenchy, a nephew of the cel- rubies from the fabled tracts of Mogok, Golconda diamonds. Most of the mines that ebrated couturier Hubert de Givenchy. produce these treasured gems have long since closed, making estate jewelry their Signed work consistently fetches a premium—sometimes up to three times the ESTATE JEWELRY only reliable source. value of a similar but unsigned piece. Greg Kwiat, the new CEO of Fred Leighton, says BY VICTORIA GOMELSKY “We have about a half-dozen people we call” when something special turns up, he recently inspected an important 1930s diamond necklace by Van Cleef & Arpels: says Walter McTeigue, co-founder of high-end jeweler McTeigue & McClelland, citing “On the strength of that signature, we increased our offer by 50 percent.” The provenance of a major piece of jewelry can often add to its allure and its retail value. an oil-shipping magnate, a publish- Add a well-documented prove- ing heiress, and a star hedge-fund M.S. Rau Antiques nance to the mix, and all bets are off. manager as clients who make his Jacques-Charles “A Cartier bandeau that was once But be sure you get the story straight before you hand over the cash Mongenot Louis XVI short list. -
Stuller.Com 800 877 7777
Above, top to bottom: 71812 Genuine Opal and Diamond Ring, 7x5mm, 1 ⁄5 CTW, 14K Rose, 158, 33, $959. Mounting #71812, $415. | 51730 Beaded Stackable Ring, 2.2mm, 14K Rose, $309 | 123038 Round-Shape Semi-Set Engagement Ring, 1 ct center (6.5mm), 1 ⁄5 CTW, 14K White, 32, size 7, $1,359. Mounting #123038, $865. | 652286 Diamond 1 Anniversary Band, ⁄10 CTW, 14K White, 544, size 7, $595 | 68662 Diamond Heart 1 Necklace, ⁄10 CTW, 7.8x5.7mm, 14K Rose, 432, 18", $775 Front cover, clockwise, from left: 85773 Be Posh® Engravable Heart Pendant, 16x14mm, 14K Yellow, $345. 86179 Posh Mommy® Imitation July Birthstone Charm, 4mm, 14K Yellow, 361, $195. CH123 Diamond-Cut Cable Chain, 1mm, 14K Yellow, 16", $119 6497 White Freshwater Cultured Pearl 1 and Diamond Ring, 4-4.5mm, ⁄5 CTW, 6mm width, 14K Yellow, 16, 33, $995. Mounting #6497, $409. | 123021 Oval-Shape Semi-Set Engagement Ring, 1 ct center 1 (8x6mm), ⁄5 CTW, 14K White, 32, size 7, $1,349. Mounting #123021, $525. | 123186 Diamond 3 Anniversary Band, ⁄8 CTW, 14K Yellow, 32, size 7, $1,289. Mounting #123186, $435. Stuller.com 800 877 7777 Prices are suggested retail at triple key based on $1,100 platinum, $1,350 gold, and $19 silver. | Items shown larger than actual size. | For current pricing and availability and to see the entire collection, visit Stuller.com. 01/2017 MKTGMEDIA:9810 FJ7330 Valentine's Day Brochure 2017.indd 1 12/6/16 12:00 PM VALENTINE’S DAY 2017 Gifts for "Sweethearts Eye Candy Looks You Crave Cool Treats FJ7330 Valentine's Day Brochure 2017.indd 1 12/6/16 12:00 PM “As you explore all of our Gifts for Sweethearts, you’re in for a real treat: irresistible jewelry selections deliciously displayed. -
METAL ENAMELING Leader Guide Pub
Arts & Communication METAL ENAMELING Leader Guide Pub. No. CIR009 WISCONSIN 4-H PUBLICATION HEAD HEART HANDS HEALTH Contents Before Each Meeting: Checklist ..............................1 Adhesive Agents or Binders ....................................6 Facilities Tools, Materials and Equipment Safety Precautions..................................................6 Resource Materials Kiln Firing and Table-Top Units Expenses Metal Cutting and Cleaning Planning Application of Enamel Colors Youth Leaders Other Cautions Project Meeting: Checklist ......................................3 Metal Art and Jewery Terms ...................................7 Purposes of 4-H Arts and Crafts ...........................................8 Components of Good Metal Enameling Futher Leader Training Sources of Supplies How to Start Working Prepare a Project Plan Bibiography ............................................................8 Evaluation of Projects Kiln Prearation and Maintenance ...........................6 WISCONSIN 4-H Pub. No. CIR009, Pg. Welcome! Be sure all youth are familiar with 4H158, Metal Enameling As a leader in the 4-H Metal Enameling Project, you only Member Guide. The guide suggests some tools (soldering need an interest in young people and metal enameling to be irons and propane torches), materials and methods which are successful. more appropriate for older youth and more suitable for larger facilities (school art room or spacious county center), rather To get started, contact your county University of Wisconsin- than your kitchen or basement. Rearrange these recommen- Extension office for the 4-H leadership booklets 4H350, dations to best suit the ages and abilities of your group’s Getting Started in 4-H Leadership, and 4H500, I’m a 4-H membership and your own comfort level as helper. Project Leader. Now What Do I Do? (also available on the Wisconsin 4-H Web Site at http://www.uwex.edu/ces/4h/ As in any art project, a generous supply of tools and pubs/index.html). -
Guide to the Identification of Precious and Semi-Precious Corals in Commercial Trade
'l'llA FFIC YvALE ,.._,..---...- guide to the identification of precious and semi-precious corals in commercial trade Ernest W.T. Cooper, Susan J. Torntore, Angela S.M. Leung, Tanya Shadbolt and Carolyn Dawe September 2011 © 2011 World Wildlife Fund and TRAFFIC. All rights reserved. ISBN 978-0-9693730-3-2 Reproduction and distribution for resale by any means photographic or mechanical, including photocopying, recording, taping or information storage and retrieval systems of any parts of this book, illustrations or texts is prohibited without prior written consent from World Wildlife Fund (WWF). Reproduction for CITES enforcement or educational and other non-commercial purposes by CITES Authorities and the CITES Secretariat is authorized without prior written permission, provided the source is fully acknowledged. Any reproduction, in full or in part, of this publication must credit WWF and TRAFFIC North America. The views of the authors expressed in this publication do not necessarily reflect those of the TRAFFIC network, WWF, or the International Union for Conservation of Nature (IUCN). The designation of geographical entities in this publication and the presentation of the material do not imply the expression of any opinion whatsoever on the part of WWF, TRAFFIC, or IUCN concerning the legal status of any country, territory, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The TRAFFIC symbol copyright and Registered Trademark ownership are held by WWF. TRAFFIC is a joint program of WWF and IUCN. Suggested citation: Cooper, E.W.T., Torntore, S.J., Leung, A.S.M, Shadbolt, T. and Dawe, C.