Hyalite Var. Opal, Rhyolite - UV

CX SC1 Ref.

Good formations of Hyalite var. Opal in a rhyolite matrix with good color and luster. A very aesthetic mineral. Luminescence can be seen under UV (Ultraviolet) light.

Hyalite Var. Opal, Rhyolite - UV
Monok, Mt., Zemplen, Hungary
Size: 5.5x5.1 cm