Aquamarine and Schorl Crystal Specimen –  NERA 009

Aquamarine crystal with gemmy termination, on schorl crystals



Measurements:  37 x 35 x 27 mm 

Description:  A light blue aquamarine crystal (23 x 07 x 07 mm) with a gemmy termination, has the side of its lower half partially embedded in the side of the biggest of the group of schorl crystals, which is well-formed and of the foitite variety. A small feldspar crystal also forms part of the specimen.

The aquamarine has only a few very small nicks to its termination and damage at the bottom where it parted from its matrix, while the schorl has damage to the one end and a pressure mark at the bottom.

The specimen displays well on a flat surface.

Weight of Specimen:  27.5 g

Chemical Composition:  Be3Al2Si6O18  (aquamarine
                                    NaFe2+3Al6Si6O18(BO3)3(OH)4
 (schorl)    
                                    KAlSi3O8 
 (feldspar)  

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

Location:  Erongo, Namibia

Specimen Code:  NERA 009

US $ 95

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