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Pharmacosiderite

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WND789990

Pharmacosiderite

Classic Locality

Description Tabs

Description
Locality: 
Wheal Phoenix, Linkinhorne, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.9 × 4.5 × 2.6 cm
Description

Numerous of glassy, intense olive green cubes of arsenate pharmacosiderite on matrix. The crystals are sharp edged and mirror bright, what gives this fine specimen a sparkling surface. This oldtimed specimen comes with a nice old label.

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
Wendel Minerals

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