#mincup25 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #mincup25, aggregated by home.social.
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Thortveitite is the main ore of scandium.
Titanite is prized for its beauty, comes in different colours & is a source of titanium and hence titanium dioxide, used as a white pigment since ~1910. So, it gets my art vote.
Gets physics vote for trichroism- transparent specimens can show 3 colours depending on viewing angle. #MinCup25 #scicomm #artHist #pigment
Vote for titanite here: https://www.mineralcup.org/2025/vote/r1m11
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Both wavellite and dioptase are sometimes made into jewelry but (though a rare pigment) dioptase has been on artwork used since Neolithic times so it wins my art vote!
See for instance Neolithic sculpture from Jordan, some ancients Asian murals & Russian religious icons.
#MinCup25Vote for dioptase here: https://www.mineralcup.org/2025/vote/r1m10