
1) Calcium mineral 2) Monoclinic mineral 3) Oxide mineral
Found on
https://www.crosswordclues.com/clue/krotite

Krotite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl2O4. It is the low-pressure dimorph of CaAl2O4, of which the high-pressure dimorph is named dmitryivanovite. Krotite was reported in 2011 in a calcium-aluminium-rich inclusion (CAI) in the carbonaceous chondrite meteorite NWA (North West Africa) ...
Found on
http://en.wikipedia.org/wiki/Krotite
No exact match found.