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Pharmacosiderite

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BCK662497

Pharmacosiderite

Ted Bartels collection
Classic Locality

Description Tabs

Description
Locality: 
Sterling Hill, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 3.4 × 3 cm
Description

You are bidding on a small miniture sample with a fracture surface coated in hundreds of cubes of green pharmacosiderite with minor franklinite. Pharmacosiderite is very rare from the mine and this is an exceptional sample of the mineral from this locality. Ted Bartels collection from Ewald Gertsmann.  

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

Seller Information

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