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Chalcoalumite

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GND71051

Chalcoalumite

Rare Mineral

Description Tabs

Description
Locality: 
Grand View Mine, Grand Canyon, Coconino County, Arizona, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 4 × 2 cm
Description

Lovely blue botryoidal masses of this rare copper aluminium sulphate occur in a soft matrix from the legendary Grand View Mine which unfortunately is off limits to collectors.

Mineral Data
What's on the rock

Chalcoalumite

Formula: 
CuAl4(SO4)(OH)12·3H2O
Strunz: 
7.DD.75
Crystal System: 
Monoclinic
Hardness: 
2.5
Streak: 
White
Type Locality: 
Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
Gondwana Minerals