Demantoid Garnets on Feldspar – NER 052

Group of demantoid garnets on garnet and feldspar matrix

Measurements:  44 x 32 x 20 mm 

Description:  Andradite (variety demantoid) garnets, with the largest being 8 mm on edge, sit on a conglomerate matrix of garnets and feldspar. 

The main crystal appears to be damaged, but when inspected with a loupe, it looks like pressure marks. The specimen, besides contact and pressure marks, have no notable damage. 

Weight of Specimen:  35.2 g

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

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

Location:  Erongo, Namibia.

Specimen Code:  NER 052

US $ 25

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