Hyalite Opal on Smoky Quartz - NER 067

Measurements:  62 x 58 x 28 mm

Description:  A beautiful cluster of fluorescent botryoidal hyalite opal sits on a smoky quartz group of which the main crystal is double terminated and without any damage. 

One of the smaller quartz crystals has a nick. The hyalite opal appears to be undamaged. 

Weight of Specimen:  36.0 g

Chemical Composition:  SiO₂•1.5(H₂O)  (opal)
                                       SiO₂  (quartz)

Hardness on Mohs Scale:  (opal)  5.5-6     
                                         (quartz)  7       

Location:  Erongo, Namibia.

Specimen Code:  NER 067

US $ 180