- Tinzenite (Tl) in Calcite and Hematite
- Tinzen, Val D'Err, Switzerland (Type Locality)
- Small Cabinet, 7.4 x 5.7 x 2.0 cm
- Ex. Giancarlo Fioravanti
Tinzenite, a member of the Axinite Group, is a rare borosilicate. The layered crystals, which are up to 1.6 cm in length, have superb vitreous luster. The Tinzenites are set in a matrix of fluorescent Calcite and very fine Hematite. This is the Type Locality for Tinzenite, and the overall piece is a fine, representative specimen with great mineralogical interest.