Mineral: Opal-AN
Locality: Kopasz Hill Quarry, Tarcal, Eperjes-Tokaj Mountains, Borsod-Abaúj-Zemplén, Hungary
Dimensions: 2.0 cm x 2.9 cm

Description: A water-clear aggregate of Hyalite opal, highly fluorescent with shortwave and longwave UV. Collected in 2013.

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