Alain.R.Truong

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Legendary mineral collector Rock H. Currier's collection celebrated in August Nature & Science Auction

DALLAS, TX .- A collection of 322 specimens from the estate of one of the most legendary mineral collectors of the last 50 years will be offered in Heritage Auctions ’ Rock H. Currier Collection of Fine Minerals Auction Aug. 26 in Dallas, Texas. Currier...

Posté par Alain Truong à 12:04 - Commentaires […] - Permalien [#]

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7 août 2018

Enormous 'lightning bolt' gold nugget - rarer than any diamond - to bring $100,000 at auction

Lot 72036. Gold Nugget "Lightning Bolt", Victoria, Australia; 10.63 x 2.36 x 1.43 inches (27.00 x 6.00 x 3.64 cm), 1,241 grams (39.9 oz t). Estimate: $70,000 - $100,000. DALLAS, TX .- An enormous, 40-ounce gold nugget, nicknamed “Lightning Bolt” for its...

Posté par Alain Truong à 10:41 - Commentaires […] - Permalien [#]

Tags: tourmaline, Gold Nugget, fluorite, Azurite, Imperial Topaz, Tarnowitzite, Fossil Palm Frond, Seymchan Meteorite, Megalodon Shark Tooth

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10 mai 2018

Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea

Lot 3246 Y. Conch Pearl, Strombus gigas or "Queen Conch", Caribbean Sea. Weighing approximately 8.88 carats and measuring 11.84 x 10.26 x 9.52mm . Estimate US$ 10,000 - 12,000 (€ 8,400 - 10,000 ) . © Bonhams 2001-2018 The present offering is of large...

Posté par Alain Truong à 20:12 - Commentaires […] - Permalien [#]

Tags: conch pearl, Strombus gigas, Caribbean Sea, "Queen Conch"

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10 mai 2018

Conch Pearl, Strombus gigas or "Queen Conch", Caribean Sea

Lot 3245 Y. Conch Pearl, Strombus gigas or "Queen Conch", Caribean Sea. Weighing approximately 7.0 carats and measuring 13.02 x 8.73 x 7.94mm. Estimate US$ 7,000 - 9,000 ( € 5,900 - 7,600) . © Bonhams 2001-2018 A conch is one of a number of different...

Posté par Alain Truong à 20:07 - Commentaires […] - Permalien [#]

Tags: conch pearl, Strombus gigas, "Queen Conch", Caribean Sea

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10 mai 2018

Important Color-Change Sapphire, Sri Lanka

Lot 3208. Important Color-Change Sapphire, Sri Lanka. Weighing approximately 27.19 carats and measuring 19.0 x 15.6 x 10.19mm. Estimate US$ 120,000 - 150,000 (€ 100,000 - 130,000) . © Bonhams 2001-2018 A lovely, unenhanced color-change sapphire with excellent...

Posté par Alain Truong à 13:03 - Commentaires […] - Permalien [#]

Tags: Sri Lanka, color-change sapphire

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10 mai 2018

Rich Black Opal-"The Black Prince II", Lightning Ridge, New South Wales, Australia

Lot 3169. Rich Black Opal-"The Black Prince II", Lightning Ridge, New South Wales, Australia. Weighing approximately 36.92 carats and measuring 31.5 x 20.2 x 8.4mm. Estimate US$ 65,000 - 85,000 (€ 55,000 - 72,000) . © Bonhams 2001-2018 A "nobby" opal,...

Posté par Alain Truong à 12:47 - Commentaires […] - Permalien [#]

Tags: Australia, Lightning Ridge, New South Wales, Black Opal-"The Black Prince II"

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10 mai 2018

Exceptional Black Pattern Opal-"Fireworks", Lightning Ridge, New South Wales, Australia

Lot 3147. Exceptional Black Pattern Opal-"Fireworks", Lightning Ridge, New South Wales, Australia. Weighing approximately 20.45 carats and measuring 22.5 x 20.4 x 7.9mm. Estimate US$ 120,000 - 140,000 ( € 100,000 - 120,000) . © Bonhams 2001-2018 This...

Posté par Alain Truong à 12:41 - Commentaires […] - Permalien [#]

Tags: Australia, Lightning Ridge, New South Wales, Black Pattern Opal-"Fireworks"

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10 mai 2018

Exceptional Chrysoberyl var. Alexandrite, Sri Lanka

Lot 3210. Exceptional Chrysoberyl var. Alexandrite, Sri Lanka. Weighing approximately 18.03 carats and measuring 15.87 x 13.54 x 10.19mm. Estimate US$ 200,000 - 250,000 (€ 170,000 - 210,000) . © Bonhams 2001-2018 Named for Tsar Alexander II, this rare...

Posté par Alain Truong à 12:31 - Commentaires […] - Permalien [#]

Tags: Sri Lanka, Chrysoberyl var. Alexandrite

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6 mai 2018

Superb Pair of Red Spinels, Burma

Lot 4305. Superb Pair of Red Spinels, Burma. Estimate US$ 50,000 - 60,000 (€ 42,000 - 50,000) © Bonhams 2001-2018 This exceptional pair of red spinels displays a medium-deep tone and vivid saturation of red color, unmasked by brown. They have been faceted...

Posté par Alain Truong à 17:47 - Commentaires […] - Permalien [#]

Tags: Burma, Red Spinel

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6 mai 2018

Very Large Rose Spinel, Tanzania

Lot 4306. Very Large Rose Spinel, Tanzania. Estimate US$ 50,000 - 60,000 (€ 42,000 - 50,000) © Bonhams 2001-2018 Distinguished by its exceptional size, this fine spinel displays a deep red rose hue as well as exceptional clarity and luster. It is worthy...

Posté par Alain Truong à 17:43 - Commentaires […] - Permalien [#]

Tags: Tanzania, Rose Spinel

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