
1) Oxide mineral 2) Titanium mineral
Found on
https://www.crosswordclues.com/clue/schreyerite

Schreyerite (V2Ti3O9), is a vanadium, titanium oxide mineral found in the Lasamba Hill, Kwale district in Coast Province Kenya. It is a polymorph of kyzylkumite. The mineral occurs as exsolution lamellae and particles in rutile, coexisting with kyanite, sillimanite, and tourmaline in a highly metamorphosed gneiss. It was named after German mineral...
Found on
http://en.wikipedia.org/wiki/Schreyerite
No exact match found.