Smoky Quartz Crystals with  Schorl – NER 004

Measurements:  66 x 52 x 38 mm

Description:  A lovely cluster of smoky quartz crystals, beautifully decorated with sprays of slender schorl crystals.  It has a matrix of mostly quartz, and bits of feldspar and schorl.

There is only limited damage to some of the outer edges of the specimen. It displays well on a flat surface.

Weight of Specimen:  112 g 

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

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

Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NER 004