Topaz Crystal – NER 002

Topaz crystal with minute inclusions

Measurements:  42 x 25 x 21 mm

Description:  A topaz crystal with a very faint blue colouring and inclusions of, what appears to be, extremely minute air bubbles. 

The upper part of the crystal has a good transparency, especially when viewed from the longest, wide shaft facet. When tilted in light, a pretty rainbow can be seen in the upper half of the shortest shaft facet, just above the pressure mark. 

The termination edge has a nick of about 5 mm wide, while the rest of the crystal has a few small nicks and a large, neat pressure mark, and two small ones. The specimen displays well on a flat surface, in an upright position.

Weight of Specimen:  59.0 g

Chemical Composition:  Al2SiO4(F,OH)2

Hardness on Mohs Scale:  8

Location:  Spitzkoppe, Erongo Region, Namibia.

Specimen Code:  NER 002

US $ 65

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