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Alurgite & Violan

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WEB540201

Alurgite & Violan

Description Tabs

Description
Locality: 
Praborna Mine, Saint-Marcel, Aosta Valley, Italy
Class: 
Artefact
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 4 cm
Largest Crystal: 
0.00cm
Weight: 
300.00gr
Description

Nice piece with some purplemassive  violane and of crystal of alurgite

Mineral Data
What's on the rock

Alurgite

Variety Of: 

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Formula: 
K2(Mg,Al)4-5(Al,Si)8O20(OH)4
Hardness: 
0.0
Colour: 
Purple

Violan

Variety Of: 

Diopside

Formula: 
CaMgSi2O6
Strunz: 
9.DA.15
Hardness: 
5.5 - 6.5
Hardness: 
6.0 - 0.0
Type Locality: 
Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Webminerals s.a.s