Demantoid Garnets and Feldspar – NER 049

Group of demantoid garnets with feldspar


Measurements:  35 x 20 x 13 mm 

Description:  A two-sided specimen consisting of a group of green andradite (variety demantoid) garnets with feldspar covering some sections of it. 

Some of the demantoid crystals have small nicks. 

Weight of Specimen:  11.2 g

Chemical Composition:  Ca3Fe32+(SiO4)3  (garnets)
                                       KAlSi3O8
  (feldspar)   

Hardness on Mohs Scale:  (garnets)  6.5-7
                                          (feldspar)  6 - 6.5

Location:  Erongo, Namibia.

Specimen Code:  NER 049

US $ 15
 


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