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Fluorite Synchysite & Anatase

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BGM692212

Fluorite Synchysite & Anatase

Description Tabs

Description
Locality: 
Puricelli Quarry, Cuasso al Monte, Varese Province, Lombardy, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
0.5 × 1.5 × 1.5 cm
Description

Tabular, red brown synchisite crystals with fluorite on black anatase.

Mineral Data
What's on the rock

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Synchysite

Synonym Of: 

Synchysite-(Ce)

Formula: 
Ca(Ce,La)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
4.5

Synchysite-(Nd)

Formula: 
Ca(Nd,Y,Gd)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
4.5

Synchysite-(Y)

Formula: 
Ca(Y,Ce)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
6.0 - 6.5
Group Parent: 
Synchysite Group

Anatase

Formula: 
TiO2
Strunz: 
4.DD.05
Hardness: 
5.5 - 6.0
Type Locality: 
St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France...

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