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Spinel Var Pleonaste Diopside & Calcite

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CLB631225

Spinel Var Pleonaste Diopside & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Aldan, Aldan Shield, Sakha Republic, Russian Federation
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 7.6 × 5.3 cm
Largest Crystal: 
3.50cm
Weight: 
608.00gr
Description

Good sample of jet-black spinel crystals up to 3.5 cm with green diopside and orange calcite.

Has a few dings.

Mineral Data
What's on the rock

Spinel

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

Pleonaste

Variety Of: 

Spinel

Formula: 
MgAl2O4
Strunz: 
4.BB.05
Hardness: 
7.5 - 8.0
Hardness: 
0.0

Diopside

Formula: 
CaMgSi2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.5
Streak: 
white

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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