Hyalite Opal Fluorescent Mineral poker chip This piece has some gemmy

This piece has some gemmy crystals and a medium green coloration

Measurement: 48mm x 28mm x 27mm

The size and quality is the best that I have seen available

Locality: Mimoso du Sul Mine

Hyalite Opal Fluorescent Mineral poker chip This piece has some gemmyThis 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