- Miniature, 4.0 x 2.5 x 2.0 cm
- Mt. Malosa, Malawi
Large, reddish brown, opaque, well-formed crystal of genthelvite to 3.6cm with a few aesthetically placed crystals of white albite to 6mm. Genthelvite is not common from Mount Malosa and this is a large crystal for its size from any locality! Exposed faces exhibit a satiny luster from slight etching; other faces have a very thin coating of feldspar.