Mimetite

Mimetite – Pb₅(AsO₄)₃Cl

Elements: Lead, Arsenic, Oxygen, Chlorine

Class: Arsenates

Crystal System: Monoclinic

Hardness: 3.5-4

Fluorite

Talc (1)Diamond (10)

Softer than glass. A steel knife scratches it.

Origin: Dry Gill Mine, Caldbeck, Allerdale, Cumbria - England – United Kingdom History: Ex Kay Robertson Collection

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