Phantom Fluorite Cluster - NERF 033

Interesting phantom fluorite cluster

Measurements:  44 x 27 x 25 mm

Description:  A cluster of pale green cubic fluorite crystals (up to about 5 mm on edge) with coke-coloured phantoms, when seen with  light from behind, otherwise having a mostly greyish-brown appearance. 

The specimen is partly coated with feldspar and small, pearly, whitish-green balls of an unknown mineral as well as a few small, transparent crystals (goshenite, topaz or a similar, unknown mineral).

This interesting specimen has very little damage.

Weight of Specimen:  18.4 g

Chemical Composition:  CaF2  (fluorite) 
                                   KAlSi3O8  (feldspar)  

Hardness on Mohs Scale:  (fluorite) 
                                      (feldspar)  6 - 6.5

Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NERF 033

US $ 35

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