Smoky Quartz Crystal – WC 040

Measurements:  85 x 35 x 23 mm

Description:  A smoky quartz crystal with a lovely surface rainbow (due to the iron oxide coating) and bits of dolomite and feldspar on some surfaces. 

The termination point has a few nicks, while the rest of the crystal has nicks and contact marks.

Weight of Specimen:  93.1 g

Chemical Composition:  SiO₂  (quartz)
                                        KAlSi₃O₈  (feldspar)
                                         CaMg(CO₃)₂  (dolomite)

Hardness on Mohs Scale:  (quartz)  7 
                                            (feldspar)  6 - 6.5
                                           (dolomite)  3.5-4

Location:  Vredendal Lime Quarry, Western Cape, South Africa.

Specimen Code:  WC 040

R 150