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Aquamarine

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CLB537747

Aquamarine

ex collection Dr. F. Krantz, Bonn
Gem Crystal

Description Tabs

Description
Locality: 
Mimoso do Sul Mine, Mimoso do Sul, Espírito Santo, Brazil
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 0.8 × 0.6 cm
Largest Crystal: 
3.50cm
Description

An unusual tapered aquamarine crystal. Double-terminated (?).

As far as I know the Mimoso mine is the only locality where those tapered aquamarine crystals were found and only a few specimen are known to exist. This is extremely rare for a wanted species like this.

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

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