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Holtedahlite

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SHS676773

Holtedahlite

ex. dealer stock Peter Bosse (Kassel/Germany)

Description Tabs

Description
Locality: 
Dypingdal, Snarum, Modum, Viken, Norway
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 1.5 cm
Description

Nice holtedahlite on matrix

Mineral Data
What's on the rock

Holtedahlite

Formula: 
Mg2(PO4)(OH)
Strunz: 
8.BB.20
Crystal System: 
Trigonal
Hardness: 
4.5 - 5.0
Colour: 
Colourless
Type Locality: 
Tingelstadtjern Quarry, Modum, Buskerud, Norway
Dimorph Of: 

Althausite

Formula: 
Mg4(PO4)2(OH,O)(F,☐)
Strunz: 
8.BB.25
Hardness: 
3.5 - 4.0