Greenish-Grey Fluorite Cluster with Feldspar - NERF 015

Measurements:  34 x 32 x 28 mm

Description:  A cluster of greenish-grey fluorite crystals with feldspar on and inside the crystals. There are also a few very small, yellowish crystals, unknown to us. 

The specimen has a few nicks. This type of fluorites from Erongo is currently very hard to obtain.

Weight of Specimen:  24.7 g

Chemical Composition:  CaF₂  (fluorite)
                                       SiO₂  (quartz)
                                        KAlSi₃O₈  (feldspar)

Hardness on Mohs Scale:  (fluorite)  4
                                          (quartz)  7 
                                           (feldspar)  6 - 6.5

Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NERF 015