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Elbaite & Herderite

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GMN803648

Elbaite & Herderite

Description Tabs

Description
Locality: 
Paprok, Kamdesh District, Nuristan Province, Afghanistan
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.2 × 0.6 cm
Description

Superb tricolor doubly terminated tourmaline crystal with nice translucent doubly terminated herderite crystal. Awesome floater - rarity in nice composition.

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...

Herderite

Formula: 
CaBePO4(F,OH)
Strunz: 
8.BA.10
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Type Locality: 
Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

Seller Information

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