Spinel
at-auction$ 20
- Locality
- Kagoro, Kaduna State, Nigeria
- Minerals
- Spinel
- Dimensions
- 0.6 x 0.5 x 0.5 cm
- Size class
- Thumbnail
- SID
- J491
Three octahedral crystals of cobalt blue Spinel. Chipping is noted along some edges, but all have an overall good octahedral
shape. Translucent to transparent crystals. Spinels from this locality don't get large but the color saturation is outstanding.
These also have a high Zinc content. Analyses has shown them to be 94% Gahnite (ZnAl2O4), the zinc rich member of the Spinel group