1 entry 1 source
Hubner; Huebner
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
A mineral of brownish black color, occurring in columnar or foliated masses. It is native manganese tungstate.
1 entry 1 source
Part of speech: noun (n.)
A mineral of brownish black color, occurring in columnar or foliated masses. It is native manganese tungstate.