Schorl and Quartz – BARG 044

Measurements:  43 x 30 x 20 mm 

Description:  A schorl crystal of 30 mm long (variety foitite) sits on a quartz crystal with schorl inclusions.

The specimen has very little damage.

Weight of Specimen:  23.9 g

Chemical Composition:  SiO₂  (quartz)  
                                       NaFe²⁺₃Al₆Si₆O₁₈(BO₃)₃(OH)₄  (schorl)

Hardness on Mohs Scale:  (quartz)  7                    
                                          (schorl )  7.5                            

Location:  Erongo, Namibia.       

Specimen Code:  BARG 044

US $ 16