14 novembre 2015

Rare Black Opal--"Mackerel or Ribbon Pattern", Lightning Ridge, New South Wales, Australia

Rare Black Opal, "Mackerel or Ribbon Pattern", Lightning Ridge, New South Wales, Australia. Estimate US$ 40,000 - 50,000 '€37,000 - 46,000). Photo Bonhams. A beautiful opal either by night or day, the present stone is particularly notable for its mackerel pattern, the name for the ribbon pattern of opalization which is so sought-after by knowledgeable opal collectors. Displaying extensive orange ribbons with some flashes of red, when the stone is rotated, iridescent green flashes abound, intermingled with some... [Lire la suite]
13 novembre 2015

Spectacular Black Opal, Corcoran Opal Field, Lightning Ridge, Australia

Spectacular Black Opal, Corcoran Opal Field, Lightning Ridge, Australia. Estimate US$ 40,000 - 50,000 '€37,000 - 46,000). Photo Bonhams. A classic for the region, predominating in firey reds and full vividness of its multi-color play-of-color. This gem possess true black potch as well as some play-of-color to the reverse side as well. Weighing approximately 8.14 carats and measuring 18.98 x 12.83 x 5.08mm Bonhams. THE WORLD OF OPALS, 23 Nov 2015 15:00 PST - LOS ANGELES
Posté par Alain Truong à 23:58 - - Commentaires [0] - Permalien [#]
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13 novembre 2015

Spectacular Black Opal, Lightning Ridge, New South Wales, Australia

Spectacular Black Opal, Lightning Ridge, New South Wales, Australia. Estimate US$ 50,000 - 70,000 (€46,000 - 65,000). Photo Bonhams. A thick, plump and delectable specimen of opal fashioned as a high-domed cabochon. Dominated by reddish-orange flashes of color, interspersed with electric blue and purple and splashes of green. With some play-of-color on the reverse, the stone retains some semi-black potch to the reverse as well which enhances the vibrancy of the colors.Weighing approximately 47.15 carats and measuring... [Lire la suite]
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13 novembre 2015

Guinness Book of World Records: Largest Recorded Black Opal Specime. "The Sea of Opal"

Guinness Book of World Records: Largest Recorded Black Opal Specimen--"The Sea of Opal", Joe's Run, Grawin Field, near Lightning Ridge, New South Wales, Australia. Carved and polished by Christine Rousel. Estimate US$ 150,000 - 250,000 (€140,000 - 230,000). Photo Bonhams. Found over 10 years ago in Grawin Field, the present specimen of seam opal was left as close as possible to the natural state in which it was found. Cut and polished by the artist who was then Australia's foremost opal carver, the late... [Lire la suite]
13 novembre 2015

Premier American collection
of twelve lightning ridge black opals, Lightning Ridge, New South Wales, Australia

Premier American collection
of twelve lightning ridge black opals, Lightning Ridge, New South Wales, Australia . Estimate US$ 600,000 - 800,000 (€560,000 - 740,000). Photo Bonhams. Comprising a free-form black opal, weighing approximately 11.07 carats; an oval black opal, weighing approximately 12.12 carats; an oval black opal, weighing approximately 13.0 carats; a free-form semi-black, weighing approximately 14.0 carats; a free-form black opal, weighing approximately 14.12 carats, an oval black opal, weighing... [Lire la suite]
Posté par Alain Truong à 23:31 - - Commentaires [0] - Permalien [#]
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14 juin 2015

'Treasure Ships: Art in the Age of Spices' opens at the Art Gallery of South Australia

Japan, Scenes of traders in Nagasaki, Mid-18th century, Nagasaki pair of hand scrolls, opaque watercolour, ink and gold on paper; box, wood, paper and ink. M.J.M Carter AO Collection through the Art Gallery of South Australia Foundation 2014. Art Gallery of South Australia, Adelaide.   ADELAIDE.- Treasure Ships: Art in the Age of Spices at the Art Gallery of South Australia in June and at the Art Gallery of Western Australia in October is the first exhibition in Australia to present the complex artistic and... [Lire la suite]


08 juin 2015

Archaeological excavations in Australia reveal a 2,000-year-old natural marine pearl

Pink-and-gold-coloured 2,000-year-old natural marine pearl from the north Kimberley coast of Western Australia. SYDNEY (AFP).- Australian scientists said Wednesday they have uncovered a "very rare" 2,000-year-old natural sea pearl -- the first found on the vast island continent -- while excavating a remote coastal Aboriginal site. Archaeologists were working the site on the north Kimberley coast of Western Australia when they came across the unique gem below the surface, said Kat Szabo, an associate professor at the... [Lire la suite]
16 février 2013

Agate / Agate Creek, Queensland, Australia

Agate / Agate Creek, Queensland, Australia
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16 février 2013

Agate / Agate Creek, Queensland, Australia

Agate / Agate Creek, Queensland, Australia
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11 septembre 2012

Agate polished cross section / New South Wales, Australia

Posté par Alain Truong à 10:02 - - Commentaires [0] - Permalien [#]
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