Aquamarine and Schorl Crystals - NERA 010

Intergrown quamarine and schorl crystal group



Measurements:  41 x 27 x 25 mm

Description:   A group of schorl and aquamarine crystals (with inclusions of small schorl crystals) and bits of feldspar. 

Some crystals are damaged.

Weight of Specimen:  27.2 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 010

US $ SOLD

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