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Goshenite Columbite-(Mn) & Elbaite

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PJM90195

Goshenite Columbite-(Mn) & Elbaite

Ex J & S Mommers Collection

Description Tabs

Description
Locality: 
San Piero in Campo, Elba, Livorno Province, Tuscany, Italy
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.4 × 2.5 × 1.6 cm
Description

A sharply terminated beryl variety goshenite, gemmy clear is included with a spray of acicular dark brown Mn columbite crystals and the beryl shares its quartz and feldspar matrix with several elbaite crystals. This is the tyupe locality for one of the most popular collectable minerals Elbaite in the Tourmaline group

Mineral Data
What's on the rock

Goshenite

Variety Of: 

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Hardness: 
7.5 - 8.0
Hardness: 
0.0

Columbite-(Mn)

Formula: 
(Mn,Fe)(Nb,Ta)2O6
Strunz: 
4.DB.35
Hardness: 
6.0

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...
Earthstones Australia

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