 | | Journal (issue) | | Pty Ltd PO Box 537, Torrensville Plaza, South Australia 5031 i\\l MINELAB Visit our website www.mlnelab...subscription competition was Stephen Dmytrenko of Victoria. If you haven't already subscribed, do so today...FOR GEM & MINERALS IN THE NEVER NEVER The Northern Territory is a treasure trove of gems Managing Editor...45unda'f, Ma'( t'fth 1-001- at 'Pa\mer, 45outh Australia. 6.arrett Meta\ Detet.tors and Other 'Priz.es...MINING CENTRE Shop2, 1048 Grand Junction Road, Holden Hill, S.A. 6088 Ph:- (08) 8396 7466 Fax:- (08) 8396 |  | | Journal (issue) | | learn some little-known facts about this mineral. Northern Virginia Mineral Club members, No in-person social...other minerals. It also forms epimorphs after calcite, datolite, or analcine. (An epimorph grows when...with color choices. Prehnite on epidote, Kayes Region, Mali. Photo: Bob Cooke. China is a large country...for prehnite with associated epidote is the Kayes Region of Mali. Spheres of translucent pea green prehnite...concentrations. Australian prehnite, from Wave Hill Station, is usually found as massive “nodules,” which |  | | Journal (issue) | | nickel (depending on the color desired) into a region that extends just below the surface of the otherwise...reactions of the sample stones to long- and short-wave U.V radiation were found to overlap those of natural-color...blue to green fluorescence when exposed to short-wave U.V radiation, whereas natural-color blue sapphires...diffusion-treated sapphires did not fluoresce to short-wave U.V radiation. This was the case for all but one...magnified 30 x , fluorescence when exposed to short-wave U.V radiation; eight of the Rainbow Collection stones |
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