Schorl with Multiple Terminations and Interesting Facets – NERS 002

Schorl (variety foitite) crystals with interesting facets.


Measurements:  90 x 55 x 47 mm

Description:  A group of shiny, jet-black schorl (variety foitite) crystals with multiple terminations and interesting facets. The specimen is partly covered with white feldspar. 

It has a large pressure mark to one end, a few small nicks and damage at the bottom where it parted from its matrix.

Weight of Specimen:  322.7 g

Chemical Composition:  NaFe2+3Al6Si6O18(BO3)3(OH)4  (schorl)
                                        KAlSi3O8  (feldspar)  

Hardness on Mohs Scale:  (schorl)  7.5
                                          (feldspar)  6 - 6.5

Location:  Erongo Mountains, Erongo Region, Namibia

Specimen Code:  NERS 002

US $ 75


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