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Elbaite

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PDM625260

Elbaite

Gem Crystal

Description Tabs

Description
Locality: 
Carnaúba dos Dantas, Rio Grande do Norte, Brazil
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 0.4 × 0.3 cm
Description

A gemmy tricoloured crystal of elbaite with an uncommon (natural) termination, dominated by two main planes instead of three. The crystal is small but the locality is extremely rare. Acquired from local miners in 2008 at Carnaúba dos Dantas by Frederic Plennevaux, a well-known Belgian gemmologist with strong family connections to Brazil.

Mineral Data
What's on the rock

Elbaite

Formula: 
Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.5
Streak: 
White
Type Locality: 
Fonte del Prete, San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy...

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