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Spinel With Fassaite

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QRI901456

Spinel With Fassaite

Classic Locality

Description Tabs

Description
Locality: 
Monzoni Mountains, Trento Province, Trentino-Alto Adige, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 5.1 × 4.3 cm
Largest Crystal: 
0.30cm
Weight: 
125.00gr
Description

Matrix specimen featuring pitch black spinel var. pleonast on top of pale green fassaite crystals from this classic Alpine locale.
Spinel has been etched from the original calcite (not by me) to expose to lustrous spinel octahedra, which are very well developed.
A classic Italian oldtimer, increasingly scarce material.

Mineral Data
What's on the rock

Spinel

Formula: 
MgAl2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
7.5 - 8.0

Fassaite

Variety Of: 

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Hardness: 
5.5 - 6.0
Hardness: 
0.0

Seller Information

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Shipping within 15 days after payment received, unless specified/agreed otherwise.

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