Schorl and Aquamarine Crystal Group - NERA 023

Schorl and aquamarine crystal group



Measurements:  31 x 29 x 26 mm

Description:   A specimen consisting of a group of small schorl crystals and a few light blue aquamarine crystals (with inclusions of small schorl crystals). 

The aquamarine crystals have only minute nicks, but some of the schorl crystals are damaged. The bits of white mineral is feldspar.

Weight of Specimen:  17.4 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 023

US $ 15

Home Order Form