steenstrupine

Noun

Meaning

steenstrupine (uncountable)

(mineralogy) A rare dark brown mineral, (La,Ca,Na)(Al,Fe,Mn)(Si,P)(O,OH,F)4, found in Greenland, occuring in rhombohedral crystals or massive formations.

Source: en.wiktionary.org

Close letter words and terms

steenkirk Steenson Steenstrup steep steep cliff steep cliffs