 | | Journal (volume) | | John Faithfull 24–45 Note amethyst from Screel Hill, Castle douglas, dumfries and Galloway, Scotland...an interesting occurrence of amethyst at Screel Hill, Castle douglas, in Scotland, by Stephen moreton...22nd June 1980 as we were walking down from Copa Hill at Cwmystwyth mine in mid-wales. we had both been...with a group of clear quartz crystals from brownley Hill mine, and Journal of the Russell Society (2015)...1st place in the “micromount” category, with a baryte from tear breeches mine, matlock bath. at this |  | | Journal (issue) | | the keeping of the Councv Librarian, Derbyshire County Council Offices, Matlo~k. Derbyshire. DE4 3AG....commonly co/led Blue John, and other fossils in this County so universally admired.• Blue John has retained...vein and srrariform deposits containing fluorite, baryte, calcite, galena and sphalerite that occupy pper...primary mineralization comprises only fluorite, baryte, calcite, galena and sphalerite. Iron sulphides...fluorite is usually metasomatic in origin. Most of the baryte in the South Pennine Orefield occurs in a colloform |  | | Journal (issue) | | Inspector| Presidium Synthetic Diamond Screener II|SYNTHdetect mounted diamond screening device|CIBJO Congress...Congress reports|Canadian diamond anniversary|GRS colour terms| GSA gem abstracts| Margaritologia pearl...testing in Hong Kong 691 Gem Notes Baryte from South Dakota, USA| Gems from Mong Long, Myanmar|Pyrite...Cambridge, Massachusetts, USA; Edward Boehm, RareSource, Chattanooga, Tennessee, USA; Maggie Campbell Pedersen...Emmett, Crystal Chemistry, Brush Prairie, Washington, USA; Emmanuel Fritsch, University of Nantes, France; |  | | Journal (article/letter/editorial) | | Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal...Beaverhead County, the pegmatites of Jefferson County, and the Snowbird mine in Mineral County continue...Highlands Centennial Nugget in 1989 in Silver Bow County. The seventh largest gold nugget found in Montana;...should be sent to the author. LOCATIONS BY COUNTY Beaverhead County Anderson deposit, sec. 16, T. 12 S., R |  | | Book | | by Lapidary Publications, 29. Ludgate London, Hill, EC.4. Lz CONTENTS I SETTING THE SCENE Section...its distinctive char acter: hematite in West Cumberland, lead and zinc in the northern Pennines and a...There are a group of old copper mines around Caradon Hill (easily spotted by the television mast which can...red jasper. Axinite is also found in Llanddwyn Island, in Anglesey, and with epidote, apatite and prehnite...Llantrisant, as at Parc 3 IRELAND Ireland is an island of considerable mineral wealth, which is currently |  | | Book | | It includes: Adamantine highly reflective like diamond Vitreous glassy, as in quartz Resinous like resin...minerals having no lustre 7 INTRODUCTION A diamond has few weaknesses and many strengths: it is the...Topaz 4 Fluorite 9 Corundum 5 Apatite 10 Diamond SPECIFIC GRAVITY This is the weight of a mineral...as 1 (note: it has no units). contrast to the diamond, Talc is the softest mineral, it is the lowest...conglomerates. The southern shore of Lake Superior (USA) is the best location to find copper , allegedly | | | Book | | It includes: Adamantine highly reflective like diamond Vitreous glassy, as in quartz Resinous like resin...minerals having no lustre 7 INTRODUCTION A diamond has few weaknesses and many strengths: it is the...Topaz 4 Fluorite 9 Corundum 5 Apatite 10 Diamond SPECIFIC GRAVITY This is the weight of a mineral...as 1 (note: it has no units). contrast to the diamond, Talc is the softest mineral, it is the lowest...conglomerates. The southern shore of Lake Superior (USA) is the best location to find copper, allegedly the |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted...Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite specimens |  | | Book (volume) | | The thermal expansion of thoria, periclase and diamond. Amer. Min., vol. 42, p. 39. Tilley, C. E., 1947...apparently homogeneous cassiterite from Westland, South Island, New Zealand (in Hutton, 1950). Spectrographic...in the Grenville series of Ontario. In Renfrew County, Ontario, corundum is erratically distributed through...source rock (Weigel and Kruger, 1934). On Alno Island, Sweden, corundum is recorded from an alvikite...metamorphic rocks by desilication as at Kinyiki Hill, Kenya, where pockets of corundum crystals up to |  | | Book | | vironments by generating long chains of volcanic island arcs around the margins of the conti¬ nents, and...cop¬ pers. Whether their habitat is continental or island arc, their alignment parallel to consuming plate...and other areas among the island arcs, and they clearly are products of island-arc volcanism. They may...formed by crustal foundering; they are parts of island-arc structures, including marginal rifts and nor¬...the lead-zinc deposits such as Sullivan and Broken Hill. By contrast, copper is generally present at much |
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