Aquamarine on Feldspar – NERA 018

Unusual, two-sided specimen aquamarine on feldspar matrix

Measurements:  63 x 40 x 18 mm

Description:  A two-sided specimen consisting of a few aquamarine crystals on 'platy' growth of aquamarine with numerous flat crystals. The latter is mostly a thin growth on a feldspar matrix. There are also some small schorl crystals and goethite on the one side. 

This unusual specimen has a few nicks and some damage to the sides.

Weight of Specimen:  42.0 g

Chemical Composition:  Be3Al2Si6O18  (aquamarine

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

Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NERA 018


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