Schorl Crystal Group with Feldspar NAM 028

Schorl crystal group with feldspar

Measurements:  34 x 24 x 18 mm

Description:  A small, two-sided specimen consisting of shiny schorl crystals with bits of feldspar. 

The specimen has a few nicks.

Weight of Specimen:  13.5 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:  NAM 028

SOLD

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