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Terlinguaite

#PD30646

Terlinguaite

#PD30646
Availability
Sold
Size
7 x 5 x 2.5 cm - Sm Cabinet 
Formula
Hg2OCl (RRUFF)
Locality
Terlingua dist., Brewster Co., Texas, United States
Tagged
Ore Minerals

Mercury has not been mined in the USA since 1992 when the McDermitt mine in Nevada closed. It is now only produced as a by-product from gold-silver mines. Nonetheless, the USA is the leading exporter of mercury since it is still produced through secondary recovery programs and recycling. A 76 pound mercury "flask" averaged $550-650 in 2008 (USGS). At one time the USA had many mines namely in California. Terlingua, Texas had producing mercury mines. Terlinguaite, like this specimen, was a chief ore at Terlingua. This is an old Carleton Davis specimen with tag.

Terlinguaite

Formula
Hg2OCl 
Crystal System
Monoclinic 
Crystal Habit
Striated, Prismatic 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
yellow, greenish yellow, brown, olive green 
Streak
light yellow 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2-3 

Data courtesy of Webmineral.

Collection
Phillips Collection

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