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Doyleite & Prosopite

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JYJ777641

Doyleite & Prosopite

EDS & XRD confirmed specimen no 19-11-08-CL1

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 0.9 cm
Description

EDS confirmed specimen no 19-11-08-CL1 hosting colourless doyleite on matrix. Also associated with this material is prosopite. 

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

Prosopite

Formula: 
CaAl2(F,OH)8
Strunz: 
3.CD.10
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Tin mine, Altenberg, Erzgebirge, Saxony, Germany