1) Oxide mineral 2) titanium mineral
Found on
https://www.crosswordclues.com/clue/geikielite
Geikielite is a magnesium titanium oxide mineral with formula: MgTiO3. It is a member of the ilmenite group. It crystallizes in the trigonal system forming typically opaque, black to reddish black crystals. It was first described in 1892 for an occurrence in the Ceylonese gem bearing gravel placers. It was named for Scottish geologist Sir Archibal...
Found on
http://en.wikipedia.org/wiki/Geikielite
No exact match found.
