Quartz Crystals and Prehnite on Matrix - NBB 115

Clear quartz crystals and lovely prehnite ball on basalt matrix

 Measurements:  40 x 27 x 20 mm

Description:  Small, clear quartz crystals (up to 6 mm long) and a lovely prehnite ball (10 x 10 mm), sit on a basalt matrix.  

There are a few green specks of epidote.

There appears to be damage only around the edges.

Chemical Composition:  SiO2   (quartz)
                                   Ca2Al2Si3O10(OH)2    (prehnite)     

Hardness on Mohs Scale:   (quartz)  7
                                       (prehnite)  6-6.5                                                 
Location:  Brandberg, Namibia

Specimen Code:  NBB 115

US $ 35



                                       
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