Double Terminated 'Siamese Twin' Quartz Specimen - NBB 156

Measurements:  70 x 16 x 13 mm

Description:  A gemmy, clear quartz crystal with a faint smoky colouring and interesting growth patterns to one of its sides (image bottom right).

The termination has a few nicks and there is damage to a large area near the base of the crystal. The crystal probably grew at an angle and the damage resulted when it was removed from its matrix.

Weight of Specimen:  24.7 g

Chemical Composition:  SiO₂

Hardness on Mohs Scale:  7

Location:  Brandberg, Namibia.

Specimen Code:  NBB 156

US $ 40