BARYTOCALCITE (A classical but mislabelled sample, in fact a mix of Barite and calcite),
Langban, Sweden;
Col. G.Barmarin; Photo: G. Barmarin
BARYTOCALCITE (A classical but mislabelled sample, in fact a mix of Barite and calcite),
Langban, Sweden;
Fluo Blue UVSW
Col. G.Barmarin; Photo: G. Barmarin