30.50g Hyalite Opal Specimen from Zacatecas, Mexico green Measurement: 81mm x 44mm x

Measurement: 81mm x 44mm x 37mm

This crystal shows a beautiful shade of blue and violet down two axis

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

Measurement: 87mm x 60mm x 43mm

30.50g Hyalite Opal Specimen from Zacatecas, Mexico green Measurement: 81mm x 44mm xThis 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