
1) Cubic mineral 2) Magnesium mineral
Found on
https://www.crosswordclues.com/clue/knorringite

Knorringite is a mineral species belonging to the garnet group, and forms a series with the species pyrope. It was discovered in 1968 in the Kao kimberlite pipe in the Butha-Buthe District of Lesotho and is named after Oleg Von Knorring, a professor of mineralogy at the University of Leeds in England. Synthetic knorringite has the pure endmember f...
Found on
http://en.wikipedia.org/wiki/Knorringite
No exact match found.