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Pharmacosiderite

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HCH198539

Pharmacosiderite

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Description
Locality: 
Schwarzenberg, Saxony, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1 cm
Largest Crystal: 
0.10cm
Description

Rich speciem with pseudocubic brown crystals of Pharmakosiderite up to 1 mm on matrix.

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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