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Chalcoalumite

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CR34851

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: 
4.8 × 3.3 × 2.7 cm
Description

A good and interesting small specimen of bright, botryoidal, powder-blue chalcoalumite richly covering contrasting gossan matrix on this fine piece from the famous Grandview Mine of Arizona, which is actually in the Grand Canyon National Park and you cannot collect from today.

Chalcoalumite is a rare copper sulfate and this is a good one

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