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Sphalerite over Siderite var. Chalybite from Alston Moor, West Cumberland Iron Mining District, Cumbria, England

 
Sphalerite over Siderite var. Chalybite from Alston Moor, West Cumberland Iron Mining District, Cumbria, England

Sphalerite over Siderite var. Chalybite from Alston Moor, West Cumberland Iron Mining District, Cumbria, England

Sphalerite over Siderite var. Chalybite from Alston Moor, West Cumberland Iron Mining District, Cumbria, England

Sphalerite over Siderite var. Chalybite from Alston Moor, West Cumberland Iron Mining District, Cumbria, England

Sphalerite over Siderite var. Chalybite from Alston Moor, West Cumberland Iron Mining District, Cumbria, England

DESCRIPTION:No. 27607
Mineral:Sphalerite over Siderite var. Chalybite
Locality:Alston Moor, West Cumberland Iron Mining District, Cumbria, England
Description:Highly lustrous dark sphalerite crystals that appear black, but are seen to be translucent brown when viewed under magnification. The sphalerite crystals are large (up to 25 mm) with surfaces composed of smaller, parallel 1-4 mm crystals faces. Ex. Sir George Savage (1842-1921); bequeathed in 1921 to the British Museum
Overall Size:6.5x5x3 cm
Crystals:1-3 cm
Status: Sold - Posted here for reference only
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