6
Hyalite
6
Budapest, Hungary
Amazing Opal (var. Hyalite) on andesite matrix. The transparent opal forms a perfect cup and performs intensive neon green fluorescence under short wave ultraviolet light (ex-G-minerals specimen)
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Mineral guide
Learn about Opal
amorphous silica with water and a spectacular play-of-color; black, boulder, and fire opal varieties capture brightness, color, and collecting appeal.Regional guide
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