Schorl Crystal Group with Feldspar – NAM 024

Measurements:  46 x 32 x 27 mm

Description:  A group of schorl crystals with bits of feldspar. Some terminations have fascinating 'mercedes signs'. 

The specimen has a few nicks.

Weight of Specimen:  35.5 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 024

R SOLD