 | | Journal (article/letter/editorial) | | Geology Reviews j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / l o c a t e / o r e g e o r...and occurrences: A review L.A. Groat a,⁎, G. Giuliani b, D.D. Marshall c, D. Turner a a b c Department...University, Burnaby, British Columbia, Canada V5A 1S6 A R T I C L E I N F O Article history: Received 29...Production Stable isotopes Classification Exploration A B S T R A C T Emerald, the green gem variety of beryl,...Madagascar, Namibia, Nigeria, Pakistan, South Africa, Spain, Tanzania, the United States, and Zimbabwe. Because |  | | Book | | collectors around 1990 for the superb specimens of a series of rare-earth species found as small crystals...Easily the best extant crystal, a doubly terminated floater found in a talc vug in 1997, is 1.7 cm long...where good crystals were taken from quartz veins in a variety of metamorphic, plutonic and pegmatitic environments...in late 19th-century literature. One of these was a site on what was known in 1887 as the Yale Farm, about...northeast of the town of Litchfield, where a mass of white quartz on a ridge had once been mined for quartz |
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