armbrusterite

English

Etymology

From Armbruster +‎ -ite, named after Swiss crystallographer Thomas Armbruster (born 1950).

Noun

armbrusterite (uncountable)

1. (mineralogy) A mineral with the chemical formula K₅Na₃Mn³⁺Mn²⁺₁₄[Si₉O₂₂]₄(OH)₁₀·4H₂O.