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Elbaite On Cleavelandite

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WND829047

Elbaite On Cleavelandite

Classic Locality

Description Tabs

Description
Locality: 
Pederneira Mine, São José da Safira, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5.7 × 4.6 cm
Description

A jackstraw of deep to dark olive-green crystals of Elbaite richly scattered over bladed white Clevelandite. Although not all crystals are perfect, the Elbaite is almost excellent terminated. The crystals are superb formed, highly lustrous and nicely striated. The larger crystals are largely black, just with backlight they become olive-green. This is a fine and contrastful specimen in very good shape.

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...

Cleavelandite

Variety Of: 

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Hardness: 
6.0 - 6.5
Hardness: 
0.0
Wendel Minerals

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