Talk:Yttrium
Latest comment: 17 February 2024 by Eudialytos in topic YBCO is NOT a mineral
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YBCO is NOT a mineral
"This superconductor is a black and green, multi-crystal, multi-phase mineral." --> not true. Minerals are SOLELY naturally formed substances. YBCO is a SYNTHETIC compound.Eudialytos (talk) 17:38, 17 February 2024 (UTC)