Thursday, October 13, 2011

Famous opals

Olympic Australis
The world's largest and most valuable gem opal. This unique opal was found by a miner at the "Eight Mile" opal field in Coober Pedy, South Australia.In honour of the Olympic Games, which were being held in Melbourne at the time, he named it "Olympic Australis".

 99% gem opal
1% remaining soil adhering to it
weight: 17,000 carats (3450 grams)
length:  11 inches (280 mm)
height:  4¾ inches (120 mm)
width:   4½ inches (115 mm)
value:   $2,500,000AUD

Andamooka Opal/ Queen's Opal
This opal was presented to Queen Elizabeth II in the 1950s on the occasion of her first visit to Australia. It was discovered in Andamooka, South Australia, an historic opal mining town.

weight: 203 carats (41 g)


"The Burning of Troy" is an opal presented to Jos├ęphine de
Beauharnais by Napoleon I of France, a magnificent opal with
brilliant red flashes.

Flame Queen Opal
It is the best-known example of “eye-of-opal”, an eye-like effect created when opal in-fills a cavity.
The Flame Queen’s flat central raised dome flashes red or gold depending on the angle of view, and is surrounded by a band of deep blue-green, giving the stone an appearance somewhat like that of a fried egg.

weight: 263.18 carats (52.64 g)
triangular in shape: 7.0 x 6.3 x 1.2 centimeters
                             (2.75 x 2.50 x .50 inches)

Halley's Comet Opal
The world's largest uncut black opal. It was unearthed in 1986, a year when Halley's Comet could be seen from Earth. It was found at Lightning Ridge, New South Wales, Australia by the Lunatic Hill Mining Syndicate. It has a large green and orange 1.6 cm (0.63 in) thick color bar which goes through the opal. 

weight: 1,982.5 carats (396.5 g)
dimension: 4 x 2-5/8 x 2-1/2 in (100 x 66 x 63 mm)

The Galaxy Opal
The World's Largest Polished Opal. It was found at the Boi Morto Mine in north eastern Brazil in 1976. It was carved from a grapefruit-sized piece of rough stone by Scott Cooley into a shape resembling a child's head.

weight: 3,749 carats (0.75 kg)
dimension:  5-1/2 x 4 x 1-5/8 in (14.0x10.2x4.1 cm)

You can also read about other famous opals on this link:

Thanks to: altmanncherny, wikipedia, and for the information and images.

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