Mineralpedia Details for Kanonaite
Kanonaite
- Formula
- Mn3+AlOSiO4
- Crystal System
- Orthorhombic
- Cleavage
- Indistinct, None, None
- Luster
- Vitreous (Glassy)
- Color
- greenish black
- Streak
- gray green
- Class
- Orthorhombic - Dipyramidal
- Hardness
- 6.5
- WebMineral
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- Mindat
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Kanonaite from Salm-Château, Vielsalm, Stavelot Massif, Luxembourg, Belgium
These little grass green arreas are described as "anhedral nodular porphyroblasts" and are about 0.75mm in diameter. They are formed in low-grade metamorphic environments and form a series with andalusite and are polymorphous with sillimanite and kyanite. It is rare and found in only five worldwide occurences.
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