A triangular diagram with SiO2, Al2O3, and H2O+fluorine on the vertices. Minerals with compositions that fall within the triangle are labelled, including kyanite, topaz, and zunyite. From Mark Barton (1982), American Mineralogist

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

Charge Transfer Between Ce and Fe During Cooling of an Aluminosilicate Melt: An In Situ XANES Investigation | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Donatini, Neuville, and co-workers @InorgChem #cerium #iron #CT #aluminosilicate #melt #XANES #in_situ

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)

https://www.youtube.com/watch?v=4tm5DrTU0W8

#MinCup24 #Aluminosilicate #LEGO #PhaseDiagram #Tectonics