Smoky Quartz Crystals with Schorl BARG 055

Group of smoky quartz specimen with schorl and feldspar



Measurements:  70 x 51 x 37 mm 

Description:  A group of light smoky quartz crystals with bits of schorl and feldspar.

The largest crystal's termination point has a small nick, and a few nicks and pressure marks near its lower end. The rest of the specimen has quite a bit of damage.

Weight of Specimen:   88.7 g

Chemical Composition:   SiO2  (quartz)                                          
                                        KAlSi3O (feldspar) 
                                        NaFe2+3Al6Si6O18(BO3)3(OH)4  (schorl)  

Hardness on Mohs Scale:  (quartz)  7                                                                                                             (feldspar)  6 - 6.5               
                                          (schorl )  
7.5

Location:  Erongo, Namibia.

Specimen Code:  BARG 055

US $ 20

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