steenstrupine

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|mineral}} A [[rare]] dark [[brown]] [[mineral]], (La,Ca,Na)(Al,Fe,Mn)(Si,P)(O,OH,F)₄, found in Greenland, occurring in [[rhombohedral]] [[crystal]]s or massive formations.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.