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K Feldspar Schorl & Aquamarine

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RAF77049

K Feldspar Schorl & Aquamarine

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 3 × 2 cm
Largest Crystal: 
5.00cm
Description

A very fine specimen of aquamarine on schorl on k-feldspar matrix from Erongo. Weight: 25.3grams

Mineral Data
What's on the rock

K Feldspar

Synonym Of: 

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0 - 6.5

Orthoclase

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0

Sanidine

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0

Schorl

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

Aquamarine

Variety Of: 

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Hardness: 
7.5 - 8.0
Formula: 
Be3Al2Si6O18
Hardness: 
0.0
Colour: 
Blue
Streak: 
White