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Apatite & Tantalite-(Mn) On Gwindel Quartz

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PJM100145

Apatite & Tantalite-(Mn) On Gwindel Quartz

Description Tabs

Description
Locality: 
Shengus, Haramosh Mountains, Skardu District, Gilgit-Baltistan, Pakistan
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.7 × 1.8 cm
Description

An attractive and very gemmy clear quartz gwindel from the pegmatite near Shengus. On one side of the quartz group where an edge has contacted the matrix a pink tabular hexangonal apatite to 1.5cm across has formed and on the opposite side a small lusterous black tantalite mn crystal has grown.

Mineral Data
What's on the rock

Apatite

Synonym Of: 

Chlorapatite

Formula: 
Ca5(PO4)3Cl
Strunz: 
8.BN.05
Hardness: 
5.0

Fluorapatite

Formula: 
Ca2Ca3(PO4)3F
Strunz: 
8.BN.05
Hardness: 
5.0

Hydroxylapatite

Formula: 
Ca5(PO4)3(OH)
Strunz: 
8.BN.05
Hardness: 
5.0
Crystal System: 
Hexagonal
Hardness: 
5

Tantalite-(Mn)

Formula: 
MnTa2O6
Strunz: 
4.DB.35
Hardness: 
6.0
Type Locality: 
Utö Mines, Utö, Södermanland, Sweden

Gwindel

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
0.0

Quartz

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

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