Cacoxenite in Amethyst Rough -
Locality: Minas Gerais, Brazil
Cacoxenite is a wide rutile crystal that form in quartz. In these
stones, the cacoxenite is inside of amethyst, which makes for strikingly
beautiful stones with glowing gold inside of transparent to translucent
purple amethyst. Cacoxenite in Amethyst comes from one locality in
Minas Gerias, Brazil and was mostly mined out years ago. This material
is also referred to as "Super Seven" by some people, but
the proper name is Cacoxenite in Amethyst.
As with all quartz species, Cacoxenite in Amethyst polishes
well with tin and cerium oxides.
Each crystal is approximately 2" long, or more!
Cacoxenite in Amethyst Rough.