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Ingvár, Monok, Zempléni Mts., Borsod-Abaúj-Zemplén Co., Hungary

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Opal (Var: Fire Opal) : SiO2·nH2O

Ingvár, Monok, Zempléni Mts., Borsod-Abaúj-Zemplén Co., Hungary

Rare fire opal lens in rhyolite.
Overall size:55*64*52mm
 © Tamás Ungvári 2005Photo ID: 30557    View Count: 483

Opal (Var: Opal-AN) : SiO2·nH2O

Ingvár, Monok, Zempléni Mts., Borsod-Abaúj-Zemplén Co., Hungary

The surface of hyalite aggregate, with clear hyalite "bubbles".
Picture size:15*12mm
 © Tamás Ungvári 2005Photo ID: 33442    View Count: 319

Opal (Var: Opal-AN) : SiO2·nH2O

Ingvár, Monok, Zempléni Mts., Borsod-Abaúj-Zemplén Co., Hungary

Clear hyalite "bubbles" on rhyolite matrix.
Overall size of hyalite bubbles:0,5-3mm
 © Tamás Ungvári 2005Photo ID: 33443    View Count: 276
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