Download Thermal & Color Chart Reference

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Thermal Conductivity Value (ADC) LOW HIGH Glass Iolite Spinel Nephrite Chrysoberyl Jadeite Topaz Chrysoprase Ruby/Sapphire Peridot Diamond Tanzanite Quartz2 Garnet(grossular-andradite group)3 Garnet(almadine-pyrope group)1 Tourmaline4 Beryl5 1 Garnet(Almadine-Pyrope group) consist of: 2 Quartz consist of : 3 Garnet(Grossular-Andradite Group) consist4 of:Tourmaline consisit of : 5 Beryl consist of : Almandine Garnet Aventurine Hessonite Tourmaline Aquamarine Pyrope Garnet Citrine Tsavorite Paraiba Morganite Spessartite Garnet Amethyst Demantoid Rubellite Emerald Colorless Quartz Goshenite Brown Quartz Helidor Black Quartz Gemstone Gemstone Name Red Pink Orange Yellow Brown Green Blue Violet Purple White Black Colorless family 1 Glass Glass Red Pink Orange Yellow Brown Green Blue Violet Purple White Black Colorless 2 Iolite Iolite Blue Violet Purple 3 Almandine Red Violet Purple Garnet (almandine - 4 Pyrope Red Violet Purple pyrope group) 5 Spessartite Red Orange Yellow 6 Aquamarine Green Blue 7 Emerald Green 8 Goshenite Beryl White Colorless 9 Helidor Yellow 10 Morganite Pink Violet Purple 11 Tanzanite Tanzanite Blue Violet purple 12 Nephrite Nephrite Orange Brown Green Blue White Black Colorless 13 Peridot Peridot Yellow Green 14 Jadeite Jadeite Red Orange Yellow Brown Green Blue Violet Purple White Black Colorless 15 Paraiba Green Blue 16 RubelliteTourmaline Red Pink 17 Tourmaline Orange Yellow Brown Violet Purple White Black Colorless 18 Demantoid Yellow Green Garnet (grossular- 19 Hessonite Orange Yellow Brown Andradite group) 20 Tsavorite Green 21 Chrysoprase Green 22 Amethyst Violet Purple 23 Aventurine Quartz Green 24 Citrine Orange Yellow 25 Quartz Brown White Black Colorless 26 Spinel Spinel Red Pink Orange Brown Green Blue Violet Purple White Black Colorless 27 Chrysoberyl Chrysoberyl Pink Orange Yellow Brown Green Blue Violet Purple White Black Colorless 28 Topaz Topaz Red Pink Orange Yellow Brown Green Blue White Colorless 29 Ruby Corundum Red Pink 30 Sapphire Pink Orange Yellow Brown Green Blue Violet Purple White Colorless 31 Diamond Diamond White Colorless.

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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.
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Magnetic Susceptibility Index for Gemstones ©2010 Kirk Feral Magnetic Responses Are Standardized to 1/2" X 1/2" N-52 Magnet Cylinders
Magnetic Susceptibility Index for Gemstones ©2010 Kirk Feral Magnetic responses are standardized to 1/2" X 1/2" N-52 magnet cylinders. Colorless and extremely pale stones of any species tend to be Inert (diamagnetic). Black opaque stones of many species are strongly magnetic and may Pick Up or Drag. Pick Up and Drag responses are weight-dependent. Direct responses on the Index apply to gems 1-4cts. Larger gems may be too heavy to Pick Up or Drag. Smaller non-Garnet gems with strong magnetism may Pick Up. Gemstone Response Range SI X 10 (-6) Range Cause of Color Actinolite Nephrite Jade (black) Strong to Drags 321-577 SI Iron Nephrite Jade (green) Moderate to Drags 91-343 Iron, Chromium Nephrite Jade (white, yellow) Inert < 0 (diamagnetic) Iron Pargasite (green) Inert < 0 (diamagnetic) Iron, Vanadium Pargasite (orangey brown) Weak 35 SI Iron Afghanite (blue) Inert < 0 (diamagnetic) Chromium, Vanadium Amber (any color) Inert < 0 (diamagnetic) Charge Transfer involving Organic Compounds Amblygonite-Montebrasite (blue, green) Inert < 0 (diamagnetic) Iron, Manganese Andalusite Inert to Weak < 0 -26 Iron-Oxygen-Titanium Charge Transfer Apatite Transparent blue, green, yellow Inert (Weak in rare cases) < 0 (diamagnetic) Mang., Rare-earth, Charge Transfer, Color Centers Cat's eye translucent yellow, yellowish brown Weak to Strong < 20 - >120 Rare-earth Metals Astrophyllite Strong 1146-1328 Iron, Manganese Axinite Drags 603-616 SI Iron Azurite (opaque) Strong 382 SI Copper Barite (pale brown, blue) Inert < 0 (diamagnetic) Color Centers Bastnasite
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An Exploration of Jade Maria Jones
Eastern Michigan University DigitalCommons@EMU Senior Honors Theses Honors College 2004 An Exploration of Jade Maria Jones Follow this and additional works at: http://commons.emich.edu/honors Recommended Citation Jones, Maria, "An Exploration of Jade" (2004). Senior Honors Theses. 85. http://commons.emich.edu/honors/85 This Open Access Senior Honors Thesis is brought to you for free and open access by the Honors College at DigitalCommons@EMU. It has been accepted for inclusion in Senior Honors Theses by an authorized administrator of DigitalCommons@EMU. For more information, please contact lib- [email protected]. An Exploration of Jade Abstract Abstract: This is a research paper studying the history of Jade carving during the Chinese Han Dynasty from 206 B.C to 220 A.D. The ap per explains the meaning of jade to the Chinese people and examines the origin of the precious stone for the Han people and other generations of dynasties. There is an accurate telling of Han beliefs followed by a descriptive passage on the history of religious influence on the Han people. There is an extensive study on the history of the Han people in general and a lengthy report on the different forms of jade and their functions for the Han people. Degree Type Open Access Senior Honors Thesis Department Art First Advisor Dr. Richard Rubenfeld Second Advisor Leslie Atzmon Keywords Jade art objects, Art objects, Chinese, Jade This open access senior honors thesis is available at DigitalCommons@EMU: http://commons.emich.edu/honors/85 AN EXPLORATION OFJ/\DL: by :'vlariaJones A St~nior ThcsIs Submitted to the !:astern tv1ichigan Umversny 1ionors Program In Partial Fulfillment of the Requiremems for Graduation With Honors in Fine Art: CcHJCcntratinnin Graphic Design 1 I I ! ~--'~""'-"""'- ,,=..
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The Red Emerald
The Red Emerald Black Album Words by Seth William Rozendaal Photos by David Rozendaal This work is for the enjoyment of gemstone aficionados around the world and throughout time, and dedicated to the divine muse who inspires everything. This book celebrates the Red Emerald’s public debut at the 2017 Tucson Gem and Mineral Show. Graphics taken from the Mineralogical Record Volume 47 Number 1: Colombian Emeralds where noted. The two photos of the Heart matrix specimen on the top of the page in Section VI were taken by Wayne Schrimp. Seth Rozendaal is responsible for the landscape photo in Section II, the beveled heart in Section VI and Office Suite Graphics. The Suite Treasure necklace photo in Section XIII was taken at the Brent Isenberger Studio. Cover and all other interior photos in this album were taken by David Rozendaal. Without his tireless dedication, this publication would not have been possible. For additional information, please contact: Seth William Rozendaal (515) 868-7207 [email protected] Index I - Red Beryl IS Red Emerald II - Formation III - Matrix Specimens IV - Wafers V - Prisms VI - Twins VII - Clusters VIII - Bixbyite Combinations IX - Topaz Combinations X - Hourglass Patterning XI - The Scarlet Spectrum XII - Facet-Grade Red Emerald XIII - The Red Emerald Suite Treasure I ~ Red Beryl IS Red Emerald The human infatuation with Emeralds runs so deep, and our desire for them traces so far back… It's one of the only gemstones found in rank-signifying Neolithic headdresses. Yeah, you heard me: Caveman Crowns. Aja Raden - Author, Historian and Scientist Diamonds may be forever, but only Emeralds are eternal; our appreciation of Emeralds stretches from the beginning of human civilization to the very end.
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Economic Dimensions of Precious Metals, Stones, and Feathers: the Aztec State Society
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The Hydrous Component in Andradite Garnet
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Crystal Guide for Business Success
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Christie's Presents Jewels: the Hong Kong Sale
FOR IMMEDIATE RELEASE October 28, 2008 Contact: Kate Swan Malin +852 2978 9966 [email protected] CHRISTIE’S PRESENTS JEWELS: THE HONG KONG SALE Jewels: The Hong Kong Sale Tuesday, December 2 Christie’s Hong Kong Hong Kong – Christie’s announces the fall sale of magnificent jewellery, Jewels: The Hong Kong Sale, which will take place on December 2 at the Hong Kong Convention and Exhibition Centre. This sale features an exquisite selection of over 300 extraordinary jewels across a spectrum of taste and style, from masterpieces of the Belle Époque to contemporary creations, and from the rarest of white and coloured diamonds to important coloured stones. COLOURLESS DIAMONDS Leading the auction is a rare pair of D colour, Flawless diamonds weighing 16.11 and 16.08 carats (illustrated right, estimate: HK$40,000,000-60,000,000 / US$5,000,000-8,000,000). These marvellous stones are also graded ‘Excellent’ for polish, symmetry and cut grade, making them exceedingly rare for their superb quality. Classified as Type IIa, these diamonds are the most the chemically pure type of diamonds known, with no traces of the colorant nitrogen. The absence of this element, seen in 98% of diamonds, gives these stones a purity of colour and degree of transparency that is observed only in the finest white diamonds. The modern round brilliant cut is the diamond’s most basic and popular shape, as it allows the potential for the highest degree of light return. But more importantly, the round diamond sustains the highest value as its production requires riddance of the greatest amount of diamond rough.
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Report of Investigation 23 Compilation of Reported Sapphire Occurrences in Montana Richard B. Berg 2015 Cover photo by Richard Berg. Sapphires (very pale green and colorless) concentrated by panning. The small red grains are garnets, commonly found with sapphires in western Montana, and the black sand is mainly magnetite. Compilation of Reported Sapphire Occurrences, RI 23 Compilation of Reported Sapphire Occurrences in Montana Richard B. Berg Montana Bureau of Mines and Geology MBMG Report of Investigation 23 2015 i Compilation of Reported Sapphire Occurrences, RI 23 TABLE OF CONTENTS Introduction ............................................................................................................................1 Descriptions of Occurrences ..................................................................................................7 Selected Bibliography of Articles on Montana Sapphires ................................................... 75 General Montana ............................................................................................................75 Yogo ................................................................................................................................ 75 Southwestern Montana Alluvial Deposits........................................................................ 76 Speciﬁ cally Rock Creek sapphire district ........................................................................ 76 Speciﬁ cally Dry Cottonwood Creek deposit and the Butte area ....................................
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F I N E C R a F T J E W E L R Y C O L L E C T I O N 2014
F i n e C r a f t J e w e l r y C o l l e c t i o n 2014 www.MarthaSeelyDesign.com y jewelry is always a reflection of the art forms that have inspired me over the years: Fiber, fashion, and the grace of natural forms; The boldness of architectural concepts; The simplicity of cold connections, and the kinetic energy of objects in M motion. It expresses in precious metal and gemstones, the strongest influences in my life as a designer: clothing/costume design, art history (with a special fondness for the Art Nouveau /Art Deco movements) and the uniqueness and strength of individual style. Floral Nouveau was inspired by my love of the Art Nouveau (and Deco) movement of the late Curved lines nineteenth century. It is contemporary and feminine. The woven wire combines my love of fiber with the asymmetrical, sinuous vines used widely within Art Nouveau art and design. and vines, woven Floral Architecture is layered contemporary jewelry with simple construction techniques where together. stones seem to float in their floral frames. The floral shapes are simple, layered and riveted together, sometimes flat and sometimes hammered and sculptural. Hammered and Echo Structures are multi-layers of simple, architectural shapes. Rivets. Textures. Con- sometimes sculptural trasts. Brilliant colored stones. Modern and clean. flowers. Formed and Winged Secrets are edgy, formed, textured and riveted flying insects. Sometimes the wings riveted flying insects. move, sometimes not. They are made in silver and gold with large faceted gemstone heads. Everything is handmade, hand formed and one of a kind.
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