Aquamarine Specimen – NERA 020

Measurements:  24 x 17 x 13 mm

Description:  A light coloured aquamarine crystal with a piece of aquamarine and small bits of schorl attached to it. 

The crystal's termination has only very minute nicks, while there are a few flaws and pressure marks lower down.

Chemical Composition:  Be₃Al₂Si₆O₁₈  (aquamarine)  
                                       KAlSi₃O₈  (feldspar)  

Hardness on Mohs Scale:  (aquamarine) 7.5 - 8.0                   
                                          (feldspar)  6 - 6.5

Location:  Erongo, Namibia, Africa.

Specimen Code:  NERA 020

US $ 25