Aquamarine Crystals on Conglomerate Matrix –  NERA 029 

Aquamarine crystals on conglomerate matrix

Measurements:  40 x 28 x 27 mm 

Description:  A group of pale, gemmy aquamarine crystals sit on a conglomerate of quartz, feldspar and goethite, with bits of these minerals also attached to the aquamarine.

Two of the aquamarine crystals are damaged.

Weight of Specimen:  28.2 g

Chemical Composition:  Be3Al2Si6O18  (aquamarine
                                       KAlSi3O (feldspar)  

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

Location:  Erongo, Namibia.

Specimen Code:  NERA 029


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