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Doyleite

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SKY775055

Doyleite

Classic Locality

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.6 × 0.8 cm
Description

Outstanding colorless crystals of the very rare mineral doyleite from the famous Clara mine in Germany.

Doyleite is a simple aluminium hydroxide but it forms very nice crystals.

Analyzed specimen by SEM-EDS and XRD see copies enclosed.

Mineral Data
What's on the rock

Doyleite

Formula: 
Al(OH)3
Strunz: 
4.FE.10
Crystal System: 
Triclinic
Hardness: 
2.5 - 3.0
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

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