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Fluorite Var Yttrofluorite

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MCH199937

Fluorite Var Yttrofluorite

Description Tabs

Description
Locality: 
Drag, Tysfjord, Nordland, Norway
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.6 × 3.2 cm
Description

A specimen with an aggregate of white/yellowish coloured yttrofluorite crystals with some fluorite, dark mica and a little bit of dark olive grey coloured bastnäsite Ce from a pegmatite quarry in the Tysfjord region in Northern Norway.

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

Yttrofluorite

Variety Of: 

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Hardness: 
4.0
Formula: 
(Ca1-xYx)F2+x where 0.05< x <0.3
Hardness: 
0.0

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