Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: Wikimedia Commons
(Ca,Mg)₆(Al,Fe³⁺)₄((Si,Al)O₄)₃O₄Cl₃
Mayenite supergroup, nesosilicate mineral
Named after Tsunashiro Wada
Source: Wikidata
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