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Dumortierite

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PCZ653732

Dumortierite

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Description
Locality: 
Spitzkopje Area, Karibib, Erongo Region, Namibia
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 6 × 4.5 cm
Description

Apple green dumortierite in quartz. A less commonly offered mineral.

(L)

 

Mineral Data
What's on the rock

Dumortierite

Formula: 
(Al,Fe3+)7(SiO4)3(BO3)O3
Strunz: 
9.AJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 8.0
Type Locality: 
Ducarre's Quarry, Beaunant, Chaponost, Rhône, Rhône-Alpes, France...
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