The organizers of #MinCup25 are very clever. Today and yesterday feature three aluminosilicates that are compositionally co-linear!
Diagram from Barton (1982), published in the American Mineralogist.
#kyanite #topaz #zunyite #aluminosilicate #MineralSocAmerica #ArgillicAlteration
Repost from Adriana Guatame
(@adriguatame.bsky.social):
With #kyanite I always remember this video created by Stacey Phillips via the Mineralogical Society (the LEGO stop motion science videos)
Scientists have produced an oxide glass with unprecedented toughness. Under high pressures and temperatures, they succeeded in paracrystallizing an aluminosilicate glass: The resulting crystal-like structures cause the glass to withstand very high stresses and are retained under ambient conditions.
Bill Minarik
Matt Willemsen