Acuminite
From Infogalactic: the planetary knowledge core
Lua error in Module:Infobox at line 235: malformed pattern (missing ']'). Acuminite is a rare halide mineral of with chemical formula: SrAlF4(OH)·(H2O). Its name comes from the Latin word acumen, meaning "spear point". Its Mohs scale rating is 3.5.
Acumenite has only been described from its type locality of the cryolite deposit in Ivigtut, Greenland.[1]
References
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