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Sugilite & Richterite

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VCV160906

Sugilite & Richterite

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Size Range: 
Cabinet (10-18 cm)
Size: 
3.8 × 10.9 × 3.4 cm
Description

A very nice large piece of purple sugilite with spots of blue richterite. The sugilite was photographed wet in the first two photos and dry in the second two.

It could be displayed as a very attractive specimen, or if desired, cut and polished into numerous stones. Weighs 74gm.

Mineral Data
What's on the rock

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

Richterite

Formula: 
{Na}{CaNa}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.20
Hardness: 
5.0 - 6.0
Streak: 
White
Type Locality: 
Långban, Filipstad, Värmland, Sweden
Vic's Vugh Minerals