Thortveitite
Sc₂Si₂O₇
Silicates
Hardness —
· Monoclinic
Zn₂Ti₄₋ₓ(Si₂O₇)₂O₂(OH,F,O)₂(H₂O,OH,☐)₄ (x<1)
Seidozerite supergroup, sorosilicate mineral
Named after Viktor Grishin
Source: Wikidata
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