A mineral of the pyroxene group, typically a calcium-magnesium-iron silicate found in metamorphic rocks.
A mineral name formed with Latin '-ite' suffix, derived from the name of the place or person it was named after. Named in 19th-century mineralogy conventions.
Fassaite is named after the Fassa Valley in the Italian Alps—many minerals are named after their discovery locations, turning geography into crystallography!
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