- Toenail, 2.8 x 2.3 x 1.7 cm
- N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
- Ex. Charlie Key
A translucent, fat crystal of ettringite - actually technically this is a layered or zoned crystal with ettringite as a layer on the outside (yellow in color) coating an internal core of charlesite, a related species. Ex. Charlie Key.