Glow Opal Zacatecas Mexico arkansas Measurement: 37mm x 33mm x

Measurement: 37mm x 33mm x 18mm

Locality: Yongchun Co

The cavansite on this specimen have a beautiful gemmy blue color with a couple accenting stilbite crystals

this is a large and beautiful piece that comes from a new find in Madagascar

Glow Opal Zacatecas Mexico arkansas Measurement: 37mm x 33mm 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