Aquamarine Crystal with Schorl –  NERA 024

Aquamarine Crystal with Schorl



Measurements:  40 x 34 x 16 mm 

Description:  A light coloured blue aquamarine crystal (34 x 10 x 07 mm) sits on a schorl (variety foitite) crystal and some feldspar. Both the schorl and feldspar are partly coated with very minute, greenish / yellowish crystals of a (to us, unknown) mineral.

The aquamarine crystal has a gemmy upper section, a few very small schorl crystal inclusions and a yellowish stain just beneath the surface. 

The aquamarine termination has only a few minute nicks. The matrix has very little damage.

The specimen displays well on a flat surface. 

Weight of Specimen:  19.2 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 024

US $ 165




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