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Crandallite

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GND71436

Crandallite

Rare Mineral

Description Tabs

Description
Locality: 
Toms Phosphate Quarry, Kapunda, South Australia, Australia
Size Range: 
Cabinet (10-18 cm)
Size: 
16 × 10.5 × 6 cm
Description

White crandallite crystals have formed inside this large open vug in the soft limonitic matrix. This is certainly one of the best cabinet crandallite specimens I have seen from any locality.

There also seems to be some of the other phosphate minerals present partly coated by the crandallite. There is no damage.

Mineral Data
What's on the rock

Crandallite

Formula: 
CaAl3(PO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Brooklyn Mine, Silver City, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Gondwana Minerals