Aquamarine and Schorl Crystals on Smoky Quartz Crystals - NERA 015

Measurements:  43 x 36 x 16 mm                                          

Description:  A few small, pale blue aquamarine crystals and a schorl crystal (as well as a few minute ones), sit on a group of light smoky quartz crystals. The first image on the left was taken in natural sunlight.

The schorl and aquamarine crystals have very little damage, while the quartz crystal group has a few nicks and damage at the bottom.

Weight of Specimen:  22.9 g

Chemical Composition:  Be₃Al₂Si₆O₁₈  (aquamarine) 
                                       NaFe²⁺₃Al₆Si₆O₁₈(BO₃)₃(OH)₄  (schorl)    
                                       SiO₂  (quartz)

Hardness on Mohs Scale:  (aquamarine) 7.5 - 8.0
                                          (schorl)  7.5  
                                          (quartz)  7       

Location:  Erongo Mountains, Namibia.

Specimen Code:  NERA 015