Quartz and Calcite Crystals on Basalt Matrix – NBB 050

Gemmy cluster of quartz crystals on matrix covered with small quartz and calcite crystals

Measurements:  49 x 33 x 23 mm

Description:  A cluster of gemmy, clear quartz crystals on a small basalt matrix covered by small quartz and calcite crystals. 

The cluster of quartz crystals have no notable damage, while the only mentionable damage to the matrix, is to the edges.

Weight of Specimen:  25.4 g

Chemical Composition:  SiO2  (quartz)                 
                                        CaCO3  (calcite) 

Hardness on Mohs Scale:  (quartz)  7               
                                          (calcite) 3

Location:  Brandberg, Namibia.

Specimen Code:  NBB 050

US $ 85

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