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Kornerupine With Inclusions

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PDM820990

Kornerupine With Inclusions

Gem Crystal

Description Tabs

Description
Locality: 
Ikalamavony, Haute Matsiatra, Madagascar
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1 × 0.8 cm
Description

An impressive tabular pair of kornerupine crystals of bottle green colour and excellent transparency, that let us see through the acicular inclusions of an unidentified dark green species, probably an amphibole. Both crystals are perfectly terminated, slightly rounded due to some fluvial erosion.

It comes from the French collector and Professor Dr. Zelimir Gabelica, with very good connexions in Madagascar. The given locality is “Ikalamanovy”. From a recent find of April-May/2017, it has been since then in my collection.

Mineral Data
What's on the rock

Kornerupine

Formula: 
Mg3Al6(Si,Al,B)5O21(OH)
Strunz: 
9.BJ.50
Hardness: 
7.0
Type Locality: 
Fiskenæsset old harbour, Fiskenæsset (Fiskenaesset; Qeqertarsuatsiaat), Nuuk (Godthåb), Sermersooq, Greenland

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