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Fluorwavellite

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JYJ714938

Fluorwavellite

EDS ver. specimen no 2019-04-05-39

Description Tabs

Description
Locality: 
Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill, Giessen Region, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.7 × 0.9 cm
Description

Even if not listed in the mindat database, the wavellite from the Rotläufchen mine contains that much F, that it can be considered as fluorwavellite. Of course the F content can vary with each crystal, but previous analysis of G. Möhn & J. Desor demonstrated that many analysed crystals can be considered as fluorwavellite. Analysis attached.

 

 

Mineral Data
What's on the rock

Fluorwavellite

Formula: 
Al3(PO4)2(OH)2F·5H2O
Strunz: 
8.DC.50
Crystal System: 
Orthorhombic
Hardness: 
3½ - 4
Colour: 
Green to yellowish-green and yellow
Streak: 
White
Type Locality: 
Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA Or Wood Mine, Del Rio, Del Rio District, Cocke Co., Tennessee, USA
Analysis
Analysis Report - only: Fluorwavellite