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Spinel

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TPX837278

Spinel

Classic Locality

Description Tabs

Description
Locality: 
Antanimora Sud, Ambovombe-Androy, Androy, Madagascar
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 1.9 × 1.5 cm
Weight: 
11.00gr
Description

Very interesting group of spinel crystals with a very dark purplish blue color on a matrix of calcite. Spinel crystals have a rounded appearance and are included within the calcite so the calcite has been partially acidicized in order to bring out the spinel crystals.

Mineral Data
What's on the rock

Spinel

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

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