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Spinel

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MGR800443

Spinel

Classic Locality

Description Tabs

Description
Locality: 
Gon Phlogopite Deposit, Aldan, Aldan Shield, Sakha Republic, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 5.2 × 3.7 cm
Description

This is very rare old material. Spinel is generally not a very common mineral, these sharp black, modified crystals from Russia are quite unique! The main crystal is very large, it shows razor sharp termination and very fie quality, the contrast to matrix is also very eye-catching. This very special variety of spinel is named "Pleonaste" and this material was discovered about 20 years ago.

Mineral Data
What's on the rock

Spinel

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