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Aquamarine Quartz Schorl & K Feldspar

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RAF73265

Aquamarine Quartz Schorl & K Feldspar

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Size Range: 
Cabinet (10-18 cm)
Size: 
15.3 × 12 × 8.2 cm
Largest Crystal: 
4.00cm
Description

This specimen is comprised of aquamarine, quartz, and schorl crystals on k-felspar from Erongo. This is a very fine specimen with a good crystal combination.  Please note the point of the aqua is missing which can be seen in the pictures. Please note that this specimen weighs over 1kg with packaging. Weight: 939.40grams.

Mineral Data
What's on the rock

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

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

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