Botallackite
Template:Short description Template:Use dmy dates Script error: No such module "Infobox".Template:Template otherScript error: No such module "Check for unknown parameters". Botallackite, chemical formula Cu2(OH)3Cl is a secondary copper mineral, named for its type locality at the Botallack Mine in St Just in Penwith, Cornwall. It is polymorphous with atacamite, paratacamite and Template:Interlanguage link.[1]
Botallackite crystallises in the monoclinic crystal system. It is mountain-green to green in colour, with one distinct to good cleavage.[1]
Discovery and occurrence
It was first described in 1865 for an occurrence in the Botallack mine, Cornwall, England, and named for the type locality.[1]
Botallackite forms in copper deposits exposed to weathering and salt water.[1] It is reported from black smoker deposits due to reaction of primary sulfide minerals with seawater. It also occurs on copper bearing slag exposed to seawater. Minerals associated with botallackite include atacamite, paratacamite, brochantite, connellite and gypsum.[2]
References
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