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Sugilite & Pectolite

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SKY204154

Sugilite & Pectolite

Classic locality
Rare Mineral

Description Tabs

Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.2 × 1.2 cm
Description

Outstanding specimen of sugilite in purple hexagonal crystals (!) associated to acicular white pectolite. Very hard to obtain material nowadays in this quality. Sugilite is a rare complex silicate found in a few localities worldwide.

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

Pectolite

Formula: 
NaCa2(HSi3O9)
Strunz: 
9.DG.05
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Sano, Mori, Mt. Baldo, Lagarina Valley, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy

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