Quartz var. Amethyst phantom

Quartz var. Amethyst phantom

sold
Locality
Ambatofinandrana, Madagascar
Minerals
Quartz
Dimensions
4.5 x 1.2 x 1.2 cm
Size class
Thumbnail
SID
QUARTZ26

This unusual example of Quartz phantom exhibits a rare habit: the phantoms alternate purple/black/purple/black as they travel through the Quartz crystal. This came from one small pocket about two years ago. I have not seen any more since then.

The termination is pristine, only a tiny chip near the base.