Gahnite rough and cut set
sold- Locality
- Kagoro, Kaduna State, Nigeria
- Minerals
- Gahnite
- Dimensions
- 0.6 x 0.6 x 0.5 cm
- Size class
- Thumbnail
- SID
- LL889
Rough and cut set of transparent blue Gahnite. Gahnite is the zinc rich end member and one of the rarer species in the Spinel group of minerals. The crystal is a complete octahedron with one tiny chip on one tip, otherwise perfect and translucent to transparent internally. The gemstone is a round just over 3mm wide. These were first discovered in 2001 and are found mostly of industrial quality. Though they don't get very large, the color is spectacular. The GIA has written a nice article about these crystals published in Gems & Gemology, Fall 2019, Vol. 55, No. 3.