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Clairite

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GFM1037767

Clairite

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Description
Locality: 
Anna Mine, Alsdorf, Cologne, North Rhine - Westphalia, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 1.3 cm
Description

 The rare Ammonium-Iron-Sulfate forms yellowish-brown, glassy lustery crystals of up to 1 mm. Very rich beside to white Rostite and colorless Tschermigite.

Mineral Data
What's on the rock

Clairite

Formula: 
(NH4)2Fe3(SO4)4(OH)3·3H2O
Strunz: 
7.DF.55
Hardness: 
0.0
Type Locality: 
Lone Creek Falls cave, Sabie, Pilgrim's Rest, Ehlanzeni District, Mpumalanga Province, South Africa...