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Spessartine With Quartz & Schorl On Feldspar

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PJM111292

Spessartine With Quartz & Schorl On Feldspar

Description Tabs

Description
Locality: 
Harts Range, Central Desert Region, Northern Territory, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 5.8 × 4.4 cm
Description

An unusual pegmatite specimen from the Mount Mary, Huckitta Wells area. The core of this specimen is a spray of schorl crystals over which quartz crystals have formed a parallel growing cluster, both rising from a feldspathic matrix that has several small to 0.6cm deep red spessartine crystals exposed .

Mineral Data
What's on the rock

Spessartine

Formula: 
Mn2+3Al2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.5
Streak: 
White
Type Locality: 
Sommer quarry, Wendelberg, Haibach, Aschaffenburg, Spessart, Franconia, Bavaria, Germany

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0

Feldspar

Group Parent: 
Feldspar Group
Earthstones Australia

Seller Information

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