 | | Book (edition) | | citrine and amethyst, which are now produced in Russia and Japan on a commercial scale. Alteration in...mountains where heat flow may be high over a wide area and the stresses and strains of mountain building...precious opal found in volcanic rocks. In the Querétaro area of Mexico, fire opal has formed in cavities in rhyolite...coming from the Andes in Colombia, the Urals in Russia and the Himalayas in Pakistan; rubies also from...sabharastraka is identified as diamond from the Vidarbha area, madhyamarastraka from the present-day Madhya Pradesh |  | | Journal (issue) | | Andradite Slices from Iran | Blue Diopside from Russia | Cat’s-Eye Emeralds from Colombia | Euchroite...polishing paste filling surface cavities in that area. Photomicrograph by J.-P. Gauthier, in brightfield...Gems & Gemology, 43(1), 65–67. Blue Diopside from Russia Violane (or violan) is a term used for violet to...applied to massive polycrystalline blue diopside from Russia, particularly by sellers on the Internet. In addition...around August 2018 and was mined from the Lake Baikal region of Russia. So far he has cut a few hundred cabochons |  | | Book | | 18:65-74 Phosphate microminerals of the Indian Mountain area [Georgia and Alabama] (by J.B. Gordon, Jr. & C....collection (by C. A. Francis) 5:190-192 A.\1ITY The Amity area, Orange County. New York (by L. E. Keams) 9:85-90...Mineralogy of the Rapid Creek and Big Fish River Area, Yukon Territory [Canada] 23:Yl-47 --with H. R....6:26-31 ANTARCTICITE Antarcticite from [Bristol Dry Lake] California (by G. H. H. Muehle) 2:171-173 A.,rrno:-...crystals from the Foote mine 8:95-97 A.'\1™O~-Y The Lake George antimony mine, New Brunswick [Canada] (by |  | | Journal (issue) | | star rubies and star sapphires. There would be no sunstone or aventurine feldspars had not minute hematite...'plume' structure (Figure 2). One small, irregular area has a dark yellowish brown colour with wavy, agate-like...J. Gemm., 1991,22,8 especially from the Matara area, which have been heat-treated to drive off colour...rubies were found in south-east Kenya, in the Mangari area, by two American geologists, John Saul and Elliott...conditions under which the rubies in the Mangari area were formed. John Saul provided samples of ruby |  | | Journal (volume) | | RAS Bld. 18/2 Leninsky Prospekt, Moscow, 117071, Russia phone (7095) 9520067; fax (7095) 9524850...mineral@fmm.ru website: www.fmm.ru Printed in Russia Ocean Pictures Ltd 4871 S. Dudley St., Littleton...of Chemical Physics RAS, Chernogolovka, Moscow Oblast, chukanov@icp.ac.ru The complex (electron microprobe...in the Fersman Mineralogical Museum RAS (Moscow, Russia). 2 tables, 4 figures, 4 references New cesium...Yarkhych River), and glaciers cover significant area of the massif. The uncovered parts of massif are |  | | Book | | pressure either locally or extending over a large area, it is said to be metamorphosed. There will be alteration...The wood of the ‘pencil’ is replaced by metal. The area to be tested should be the pure mineral, not a coating...museum, if the serious collector knows that the area in which he has been operating is mineralogically...sulphide veins in the Coeur dAlene area of Idaho (USA). Also in the Oldham area, Lancashire (England), and at...rocks, chiefly as large pale green crystals in the area of Bombay, particularly at the Pashan quarries, |  | | Book | | Rock Crystal 235 235 210 210 211 211 212 Sunstone 212 Taaffeite Tanzanite 212 Zn Appendix 1...of very fine gemstones. Their collaborator in the area of engraved gems was Michel Duchamp; the French...Chibcha of South America offered gold and emeralds to Lake Titicaca (see EMERALD). Tribal chiefs, priests,...produces folded metamorphic Topaz from the Ouro Préto area of Minas Gerais, Brazil Part One: Introduction...small Sandawana production, from the Fort Victoria area in Zimbabwe, is sold through a system of ‘‘sights” |  | | Journal (issue) | | Newfoundland and Labrador, Canada Dr Donald J. Lake University of British Columbia Vancouver, British...Tannous, M. 2003. Gem News International: Star sunstone from Tanzania. Gems & Gemology, 39(3), 235–236...revealed a network of short rutile needles in one area along the girdle of the stone (Figure 7a), consistent...gem-quality lazurite and calcite in the Lake Baikal area of Russia (Chukanov et al. 2020, 2023). Until now...environment for the formation of ruby in the Mogok area. To our knowledge, this is the first time bystrite |  | | Journal (issue) | | Schwarz Review of Gem Localities in North America, Russia, and Southeast Asia 64 William Larson Colored Stone...of reality has set in. The end of communism in Russia did not produce the automatic flourishing of democracy...these two partially healed cleavages has a black area similar to one identified as graphite in another...stone, they became glassier (figure 11). A black area was seen in some of the cleavages (figure 12); laser...inclusions surrounded by a stress crack, a black inner area (graphite) was surrounded by a brighter halo of |  | | Book (edition) | | Outstanding crystals found in talc near Wenatchee Lake, Chelan County, Washington. Adamite Group Adamite-Olivenite...deposit, southwestern Transbaikalia, and in the Lake Baikal area, USSR; at Pitigliano, Tuscany, Italy; and...pearly on cleavages. MODE OF OCCURRENCE: Found in an area along 8 AGRINIERITE the Kipawa River, Villedieu...Colorado; at the Sells and South Hecla mine, Salt Lake County, and at the Cyclone mine, Tooele County,...ores from Cobalt, Ontario; in ore from the Red Lake area of Ontario; reported in ore from the Consols Mine | | | Book (edition) | | Outstanding crystals found in talc near Wenatchee Lake, Chelan County, Washington. ADAMITE Zn2As04(0H)... southwestern Transbaikalia, 1u1.d in the Lake Baikal area, USSR; at Pitigliano, Tuscany, Italy; and...pearly on cleavages. MODE OF OCCURRENCE: Found in an area along 8 AGRINIERITE the Kipawa River, Villedieu...Colorado; at the Sells and South Hecia mine, Salt Lake County, and at the Cyclone mine, Tooele County,...from Cobalr. Ontario; in ore fron1 rhe Red Lale area of Ontario; reponed in ore fron1 the Consols ~line |
|
