Fluorite and Mica Crystal Cluster - NERF 026

Fluorite and mica crystal cluster

Measurements:  20 x 19 x 12 mm

A small specimen consisting of several green fluorite crystals, most with purple colouring to their edges, and muscovite crystals, with a small schorl crystal and bits of schorl at the bottom.

There is some damage to the edges of the specimen.

Weight of Specimen:  5.8 g

Chemical Composition:  CaF2  (fluorite)
                                     NaFe2+3Al6Si6O18(BO3)3(OH)4  (schorl)

Hardness on Mohs Scale:  (fluorite)  4
                                        (muscovite) 2-2.5
                                        (schorl)  7.5

Location:  Erongo Region, Namibia.

Specimen Code:  NERF 026


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