Hyalite Opal from Zacatecas Mexico Chalcedony A very unique piece

A very unique piece

Locality: Vera Cruz

Measurement: 67mm x 38mm x 32mm

and a beautiful saturated blue color

Deep blue azurite crystals span the face of this specimen from Laos

Hyalite Opal from Zacatecas Mexico Chalcedony A very unique pieceThis 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