Barstowite

Barstowite

Infobox mineral
name = Barstowite
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formula = Pb4 [Cl6|CO3] •H2O
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color = White to transparent
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system = monoclinic
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fracture =
tenacity =
mohs = 3
luster = Adamantine
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streak = White
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Barstowite, formula Pb4 [Cl6|CO3] •H2O , is a transparent to white mineral in the monoclinic system. [http://www.mindat.org/min-540.html Barstowite at Mindat.org mineralogical website] ] It has a Mohs hardness of 3, a white streak and an adamantine lustre.

The type locality for Barstowite is Bounds Cliff, St Endellion, Cornwall in the United Kingdom. It is named after Richard W. Barstow a Cornish mineral collector. [ [http://www.minrec.org/labels.asp?colid=103 Mineralogical Record article on Richard Barstow] ]

References


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