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Aquamarine Tourmaline & Feldspar Group

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MGR731781

Aquamarine Tourmaline & Feldspar Group

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.4 × 4.9 × 3.5 cm
Description

This specimen is really superb. Of course plenty of specimen came from Erongo, but this one stands out the crowd. The Schorl crystal is hollow inside - nearly impossible to photograph this - but whe you look at it in person you can see the cavity, the feldspat inside and even a part of the aquamarine crystal. The Schorl shows sharp modified pyramidal end-points, all faces have mirror-luster and amazing texture with beautiful details. The aquamarine crystal  is gemmy, double terminated and shows very good color - grewn diagonal to the schorl. All set on light well developed feldspat - the whole assemble is even a floater and there are no significant damages to report! A mayor piece on highest quality!

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

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7