Opal

Origin: SE Australia

Picture height: 8 mm

Sample owner: W.R. Moorer

 

 

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Origin: Opal Butte, Oregon, U.S.A.

Sample size: 9 x 8 x 2.5 cm

 

Origin: Glasendorf, Germany
ex. Pech Collection

Sample size: 5 x 4 x 3 cm

 

     

Origin: Huanuni tin mine, Oruro Department, Bolivia

Ex. Zinn collection

Sample size: 8 x 3.8 x 3.3 cm
 

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Origin: Mexico

Sample size: 5 x 10 x 1.8 cm

 

  

Origin: Mexico

Sample size: 10 x 12 x 5.5 cm

 

  

Origin: Mexico

Sample size: 5.5 x 5 x 3.5 cm

 

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Opal var. fiorite, aggregate of pearly spherulites

Origin: Fiora, Italy

Sample size: 1.5 x 2.5 cm

 

Hyalite opal, transparent 2 cm large nodules of colourless hyalite opal nestled in pockets in matrix.  Fluoresces bright green under SW UV

Origin: Erd6bénye, Tokaj Mnts, NE Hungary

Sample size: 4 x 5 cm

 

Opal var. forcherite, Brownish coloured opal due to the inclusions of Orpiment. SW UV Yellow green

Origin: Knittelfeld, Steiermark, Austria

Sample size: 5 x 7 cm

 

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Origin: Andamooka, South Australia, Australia

Sample size: 2.5 x 2 x 2 cm

 

  

Opal with quartz

Origin: Gunheath China Clay Pits, St. Austell, Cornwall, England

Sample size: 5 x 5 x 3 cm

 

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Fossilized clam replaced by precious opal.

Origin: Coober Peddy, Queensland, Australia

Sample size: 2.5 x 2 x 0.6 cm

 

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