Product Details

A vivid Fluorescent Hyalite Opal specimen from Zacatecas, Mexico, featuring rounded, glass-like opal growth across contrasting reddish-brown volcanic matrix. One side has been polished flat, creating a stable self-standing base while revealing the specimen’s internal structure and the boundary between the hyalite and host rock. Under ordinary lighting, the hyalite appears colorless to slightly milky with excellent vitreous luster. Rounded botryoidal formations rise across the natural display face, producing a clustered, bubble-like surface that reflects light from numerous angles. Portions of the material are transparent to translucent, allowing the internal textures and underlying matrix to remain visible. Under ultraviolet illumination, the hyalite transforms into an exceptionally bright electric green. The fluorescence extends across much of the opal formation, clearly outlining individual rounded growths and contrasting dramatically with the comparatively dark matrix. Fluorescen...