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Norrishite & Sugilite

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UVM609075

Norrishite & Sugilite

Rare Mineral

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.6 × 1.3 cm
Description

Dark micaceous norrishite rich in a sugilite matrix.   Rarely seen material from the Kalahari.

Mineral Data
What's on the rock

Norrishite

Formula: 
KLiMn3+2(Si4O10)O2
Strunz: 
9.EC.20
Hardness: 
2.5
Type Locality: 
Hoskins mine, Grenfell, Forbes Co., New South Wales, Australia

Sugilite

Formula: 
K(Na,□)2Li3(Fe,Mn,Al,Zr)2[Si12O30]
Strunz: 
9.CM.05
Crystal System: 
Hexagonal
Hardness: 
6.0 - 6.5
Type Locality: 
Iwagi Island, Inland Sea (Setonaikai), Ehime Prefecture, Japan

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