30.50g Hyalite Opal Specimen from Zacatecas, Mexico green This beautiful cluster of barite

This beautiful cluster of barite crystals have an interesting brownish green color and great crystal structure

Measurement: 81mm x 44mm x 37mm

Individual Pyrite Crystals Measure:

81 carat tanzanite crystal measures 22mm x 10mm x 10mm

The larger calcite is very fairly transparent and has a good contrast against the smaller crystals at the base

30.50g Hyalite Opal Specimen from Zacatecas, Mexico green This beautiful cluster of bariteThis hyalite opal specimen not only will glow under an artificial UV lighting source, this particular source of hyalite opal will actually fluoresce in daylight, too! That is what makes this source(Zacatecas, Mexico) so unique. It looks best in diffused daylight, right outside of direct sunlight and it will have subtle green glow, while in indoor home lighting, much of this opal is almost colorless. The intensity of daylight fluorescence will vary