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Andradite

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MGR1084505

Andradite

Classic Locality

Description Tabs

Description
Locality: 
Arlit, Agadez, Niger
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.3 × 1 cm
Description

Rainbow garnet from an exceptional, small and very rare discovery made in Niger in January 2019. Gemological properties correspond to nearly pure andradite (similar to Japanese rainbow garnets). Analyzed using EDS: as it was expected from gemological properties, the sample is nearly pure andradite with minor spessartine and grossular constituents. The main crystal is 11mm across, all crystals are sharp terminated and show rainbow colors on most faces. Should be high ranke as exceptional rarity.

Mineral Data
What's on the rock

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

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Start 23 Nov 18:00
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Shipping Information

Postage Area Price
Austria 5
5
Europe 14
17
North America 16
25
Rest of World 19
22

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