Fri, 19 May 2017 22:39:47 +0000
Quartz on Muscovit (photo by Heritage Auctions)
Quartz with Phantom from Minas Gerais, Brazil. / Mineral Friends <3
Quartz -Glacier du Talefre-Haute-Savoie ( 21,2 x 12,3 x12,1)
VIVIANITE ~ Huanuni Mine, Huanuni, Dalence Province, Oruro Department, Bolivia
Smoky Quartz with Spessartine from China / Mineral Friends <3
Benitoite and Neptunite, California USA
Golden Topaz From Maynard's Claim, Thomas Range, Juab Co., Utah-SR
Apatite on Arsenopyrite Panasqueira, Portugal... http://www.mineral-forum.com/message-board/viewtopic.php?t=205=0=asc=100
Quartz on Schorl / Mineral Friends <3
Osmium is both the densest and the rarest element that you can dig out of the Earth. It's so hard that it's used in places with constant pressure and wear, like the tips of fountain pens. One single cubic inch of this stuff weighs nearly a pound, and were you to somehow get a cubic foot of it, it would weigh over 1,400 pounds. Good luck with that, though: last year, the entire U.S. osmium production was only 165 pounds.
Beryl var. Aquamarine with Quartz on Schorl.
Azurite On Malachite - In Photos: 10 Hot Rocks For Your Portfolio - Forbes
Minerals:Crystals, AMETHYST SMOKEY QUARTZ ON CALCITE WITH LEPIDOCROCITE INCLUSIONS....