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Clairite & Rostite

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FDW45502

Clairite & Rostite

(NH4-Fe-Na-Cl Sulphate)
Type Locality

Description Tabs

Description
Locality: 
Anna Mine, Alsdorf, Cologne, North Rhine - Westphalia, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2 × 1.5 cm
Description

A dozen micro brown shiny clairite crystals are clearly visible on the matrix. Inbetween are a few micro clusters of the Unnamed (NH4-Fe-Na-Cl Sulphate, the apple-green needles). The last phase has not been for sale yet. The white material on one side of the specimen has earlier been analysed as rostite. Found by seller in 2005.

See http://www.mindat.org/min-38898.html for the Unnamed mineral.

High resolution mineral images (tiff 75 MB), for use in articles or to print A3 for your wall, will be provided as download on request.

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...

Rostite

Formula: 
Al(SO4)(OH)·5H2O
Strunz: 
7.DB.10
Hardness: 
0.0
Type Locality: 
Kladno Mine (Nejedlý I Mine; Zdeněk Nejedlý Mine; Schoeller Mine; Schöller Mine), Libušin, Kladno, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
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