Schorl with Quartz – NERS 029

Schorl crystal group with embedded smoky quartz

Measurements:  85 x 55 x 46 mm  

Description:  A group of schorl crystals with a few pieces of smoky quartz partly embedded in the schorl. 

The bottom of the specimen has a few beautiful faces (image bottom left). 

The quartz terminations are damaged, while the schorl has a few nicks, and contact and pressure marks.

Weight of Specimen:  248.8 g   

Chemical Composition:  NaFe2+3Al6Si6O18(BO3)3(OH)4  (schorl)
                                       SiO2  (quartz)  
                        
Hardness on Mohs Scale:  7.5  (schorl)
                                          7  (quartz) 
                                   
Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NERS 029

US $ 140
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