Heavy specimen. Sharp pale blue crystals. Video best viewed full screen.
Olmiite fluoresces bright red under longwave UV. Ex Barry Johnson Collection. Video best viewed full screen.
ex Joan Lamond Collection.
Colourless crystals on matrix of celestine. Micro specimen of a larger piece (since let go).
The tabular tunisite crystals look like colourless wulfenite crystals. The long thin crystals are celestine, and there is also calcite with brownish cores present. Specimen is from Condorcet, Drôme, Auvergne-Rhône-Alpes, France.