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Gugiaite Fluorite & Muscovite

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SER732910

Gugiaite Fluorite & Muscovite

Description Tabs

Description
Locality: 
Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.6 × 4.1 × 2.5 cm
Description

some tiny, white gugiaite crystals on muscovite with a light blue fluorite on muscovite

Mineral Data
What's on the rock

Gugiaite

Formula: 
Ca2Be(Si2O7)
Strunz: 
9.BB.10
Crystal System: 
Tetragonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Gujia village, Tangqiao, Zhangjiagang Co., Suzhou Prefecture, Jiangsu Province, China

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

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White