Back to: Nature online

Earth lab datasite

Mimetite
Arsenate with arsenopyrite
lead chloride arsenate
Pb5 (AsO4)3 Cl ?
Scale bar = 1 centimetre
cleavage: None
crystal system: Monoclinic
hardness 3.5 - 4.0
relative density 7.0 - 7.3
Wheal Unity, Cornwall
25 J 9