Interesting Hyalite Opal from Zacatecas, Mexico Twin Crystal We consider this piece to

We consider this piece to be a Small Cabinet Specimen (LGC)

It's a great cabinet sized addition to any mineral collection

Measurement: 197mm x 100mm x 78mm

Weight: 220

Weight: 169g

Interesting Hyalite Opal from Zacatecas, Mexico Twin Crystal We consider this piece toThis 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