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Aquamarine On Albite

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BMM833779

Aquamarine On Albite

Description Tabs

Description
Locality: 
Shigar District, Gilgit-Baltistan, Pakistan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.9 × 4.5 × 3.2 cm
Description

Very gemmy, medium blue transparent crystal artfully positioned on a nicely contrasting matrix of snow-white albite feldspar. The aquamarine crystal exhibits a glassy luster and extends all the way through to the bottom of the matrix. The bottom is also well crystallized only the foremost part is from the rock.

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

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden