Prehnite and Quartz (Soetwater) WC 042

Pale prehnite blades cover pale amethyst quartz crystals

Measurements:  100 x 70 x 65 mm

Description:  Pale green blades of prehnite cover a plate of pale amethyst quartz crystals. 

Most of the prehite blades are damaged, as are some quartz crystals on the edges. 

This specimen came from an optical calcite mine, which is nou defunct.

Weight of Specimen:  346 g

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

Hardness on Mohs Scale:  
(prehnite)  6-6.5   
                                           (quartz) 7        

Location:  Soetwater near Calvinia, Western Cape, South Africa.

Specimen Code:  WC 042

R 300


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