1) Magnesium mineral 2) Monoclinic mineral
Found on
https://www.crosswordclues.com/clue/caryopilite
Caryopilite (synonymous with ectropite and ektropite) is a brown-colored mineral with formula (Mn2+,Mg)3Si2O5(OH)4. The mineral was discovered in 1889 from a mine in Sweden. It was named for the Greek words for walnut and felt in reference to its appearance. Caryopilite is reddish-brown to tan in color naturally; in thin sections, it is light brow...
Found on
http://en.wikipedia.org/wiki/Caryopilite
No exact match found.
