Hyalite Opal Rough Gemstone (50g bag)

Grab a 50g bag of rough Hyalite Opal, great for wire wrapping and those who love to play with UV minerals. Each bag contains at least 3 pieces that, when added together, equal 50g or more. The picture is a sample of what you can expect in your bag!

Hyalite opal is an unusual variety of opal found in various volcanic locations around the world. Because of its unique structure, you won't find any opalescence or "play of color" that traditional opals are known for. Instead, hyalite opal impresses when viewed under both Longwave and Shortwave ultraviolet light, fluorescing a strong green color. Its formation can be classified as amorphous, botryoidal and globular. Its name comes from the Greek word for glass, ýalos (ύαλος), due to its glass-like appearance.

Weight: 50g in 3+ pieces
Locality: San Luis Potosí, Mexico