found a paper describing #cylindrite structure a little bit #MinCup26
www.minsocam.org/ammin/AM77/A...
no diagram tho, showing why sheets curl up into cylinders.
@barrygoldman1.bsky.social
@barrygoldman1.bsky.socialfound a paper describing #cylindrite structure a little bit #MinCup26
www.minsocam.org/ammin/AM77/A...
no diagram tho, showing why sheets curl up into cylinders.
@louisedawe.bsky.socialI'm voting #cylindrite for #MinCup26! As reported by Evain in @actacrystb.iucr.org, levyclaudite-(Sb), a member of the cylindrite-type minerals, is incommensurately modulated and joins sheets with mismatched dimensions, producing its extraordinary curved form! journals.iucr.org/b/issues/200...
@warriorchicken.meMy vote goes to #Cylindrite over the fascinating but treacherous pyrrhotite
@crystallised-cricket.comNo contest today in #MinCup26 in my mind - #Cylindrite is one of the minerals that sneaked into definition with no crystal structure defined! So #Pyrrhotite all the way - plus there's there awesome thing that a small nudge in the iron positions is what gives it its magnetic properties.
@mineralcup.bsky.social#MinCup26 Round 1 Match 12
Grey hides complexity for these metal-rich minerals as trickster #Pyrrhotite battles geometrically-unusual #Cylindrite in this monochromatic matchup.
VOTE: www.mineralcup.org/2026/vote-re...
RESULTS: www.mineralcup.org/2026/vote-re...
