Fluorite and Muscovite on Matrix – NERF 007

Fluorite and muscovite on muscovite-rich matrix

Measurements:  55 x 33 x 26 mm

Description:  Green fluorite crystals, the largest 11 mm long, share a muscovite-rich feldspar matrix with yellowish muscovite crystals. The largest group of fluorite crystals has lovely growth patterns. 

The fluorite crystals have only small nicks.

Weight of Specimen:  42.3 g

Chemical Composition:  CaF2  (fluorite)
                                        KAl2(Si3Al)O10(OH,F)2
  (muscovite
                                        KAlSi3O8  (feldspar) 

Hardness on Mohs Scale:  (fluorite)  4
                                           (muscovite) 2-2.5
                                           (feldspar)
  6 - 6.5

Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NERF 007

US $ 35

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