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Grischunite Brandtite & Tilasite

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BCK634083

Grischunite Brandtite & Tilasite

Type Locality

Description Tabs

Description
Locality: 
Falotta, Tinzen, Grischun, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.9 × 0.6 cm
Description

You are bidding on a small sample with a very nice bright red, terminated grischunite crystal in a vug of greenish tilasite crystals. The vug was then filled in with white brandtite. Collected by Hans-Peter Klinger. 

Mineral Data
What's on the rock

Grischunite

Formula: 
NaCa2Mn2+5Fe3+(AsO4)6·2H2O
Strunz: 
8.CF.05
Crystal System: 
Orthorhombic
Hardness: 
5.0
Type Locality: 
Falotta, Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland

Brandtite

Formula: 
Ca2(Mn2+,Mg)(AsO4)2·2H2O
Strunz: 
8.CG.10
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
Harstigen Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden

Tilasite

Formula: 
CaMg(AsO4)F
Strunz: 
8.BH.10
Hardness: 
5.0
Type Locality: 
Långban, Filipstad, Värmland, Sweden

Seller Information

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