Measurements: 66 x 36 x 21 mm
Description: A quartz crystal with faint clouds of amethyst colouring, two sizable moving bubbles and a few tiny moving bubbles, and the greater part of it being gemmy. The most obvious bubble is about 2 mm in diametre. Just below it is the biggest bubble, measuring about 4 mm in diametre, and is situated towards the middle of the crystal (vaguely seen towards the bottom of the top right image).
Tilted at a certain angle, a small rainbow can be seen near the base of the biggest termination facet. Besides the bubbles, the crystal has fascinating gas inclusions.
termination has a small nick while there are
contact and pressure marks near the crystal's base. The crystal parted
from its matrix at an angle.
Chemical Composition: SiO2
Hardness on Mohs Scale: 7
Specimen Code: NBB 023
US $ 130..