Smoky Quartz Crystals with Inclusions - NER 051

Measurements:  40 x 35 x 30 mm

Description:  A group of smoky quartz crystals with a piece of schorl embedded at the base. The crystals have a few beautiful inclusions of (what appears to be) schorl, which can clearly be seen when held against light (two images with white background).    

One of the terminations have a nick, while some of the other terminations have only minute nicks. The rest of the specimen has flaws and contact /pressure marks.

Weight of Specimen:  36.7 g 

Chemical Composition:  SiO₂  (quartz)
                                        Fe²⁺₃NaAl₆Si₆O₁₈(BO₃)₃(OH)₄  (schorl)

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

Location:  Erongo, Namibia.

Specimen Code:  NER 051