Quartz Crystal with Light Amethyst Colouring on Matrix NBB 081

Quartz crystal with light amethyst colouring, on matrix

Measurements:  73 x 55 x 45 mm

Description:  The specimen consists of a clear quartz crystal (26 x 11 x 09 mm) with light amethyst colouring in its lower half, that sits in / on a bed of quartz, calcite and some (?)other minerals which, in turn, sit on a matrix of basalt rock.

There is a minute (still) bubble and a small rainbow (seen when tilted in light) just below the horizontal midline.

The only damage to the main crystal appears to be a very small nick close to the termination tip. The quartz that forms part of the matrix, has quite a bit of damage to it. 

The specimen has been trimmed at the bottom, so it displays well on a flat surface.

Weight of Specimen:  120.3 g

Chemical Composition:   SiO (quartz)
                                        CaCO3  (calcite

Hardness on Mohs Scale
:  (quartz)  7   
calcite)  3

Location:  Brandberg, Namibia.

Specimen Code:  NBB 081

US $ 75

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