D defs.my
Entry 1 sense Webster, 1913

Volborthite

· Vol·borth·ite · IPA
01 n. A mineral occurring in small six-sided tabular crystals of a green or yellow color. It is a hydrous vanadate of copper and lime.
  1. 1.
    A mineral occurring in small six-sided tabular crystals of a green or yellow color. It is a hydrous vanadate of copper and lime.(Min.)