1) Chromium mineral 2) Trigonal mineral
Found on
https://www.crosswordclues.com/clue/eskolaite
Eskolaite is an uncommon chromium oxide mineral (chromium(III) oxide Cr2O3). ==Discovery and occurrence== It was first described in 1958 for an occurrence in the Outokumpu ore deposit of eastern Finland. It occurs in chromium bearing tremolite skarns, metamorphosed quartzites and chlorite bearing veins in Finland; in glacial boulder clays in Irela...
Found on
http://en.wikipedia.org/wiki/Eskolaite
No exact match found.
