Barstowite

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Barstowite
Category Lead minerals, Carbonate minerals, Halide minerals
Chemical formula Pb4[Cl6|CO3]•H2O
Identification
Color White to transparent
Crystal system monoclinic
Mohs Scale hardness 3
Luster Adamantine
Streak White

Barstowite, formula Pb4[Cl6|CO3]•H2O , is a transparent to white mineral in the monoclinic system.[1] It has a Mohs hardness of 3, a white streak and an adamantine lustre.[1]

The type locality for Barstowite is Bounds Cliff, St Endellion, Cornwall in the United Kingdom.[1] It is named after Richard W. Barstow[1] a Cornish mineral collector.[2]

[edit] References

  1. ^ a b c d Barstowite at Mindat.org mineralogical website
  2. ^ Mineralogical Record article on Richard Barstow
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