Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Photo: David Hospital · CC BY-SA 4.0
Ca₄(Ce,REE)∑₂Al(Be₁.₅☐₀.₅)∑₂[B₄Si₄O₂₂]O₂
Single chain inosilicate mineral
Source: Wikidata
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