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Pharmacosiderite

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CLB622429

Pharmacosiderite

ex collection Schortmann's Minerals, ex collection William Shelton
Classic Locality

Description Tabs

Description
Locality: 
Graul, Langenberg, Schwarzenberg, Erzgebirge District, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5.5 × 2.8 cm
Description

Very rich specimen full of dark green pharmacosiderite crystals. With an old Schortmann's label from the late 19thirties or 19forties.

Mineral Data
What's on the rock

Pharmacosiderite

Formula: 
KFe3+4(AsO4)3(OH)4·6-7H2O
Strunz: 
8.DK.10
Hardness: 
2.5
Streak: 
white
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

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