MOTHER OF PEARL - LADY CARVING - 11.6 CTS [PF 834 ]

Informations sur l'élément

Dimensions (mm) 22 x 15 x 2mm
Poids (carats) 11.6 carats
Couleurs
Traitement...

MOTHER OF PEARL CARVING
This is a mother and child carving done by machine with a glossy finish.The pearl [nacre ] shell glistens like opal colour.

Nacre is made mostly of aragonite—a calcium carbonate crystal—arranged in 500-nanometer-thick layers. It forms from ions in seawater that washes through an organic “scaffold” of thin, interconnected, horizontal sheets—the animal essentially lays the “mortar” before filling in the “bricks.” The iridescence of mother-of-pearl comes from the interference of light as it reflects from the thin, crystalline layers. But the beauty is only part of what drew Pupa Gilbert, of the University of Wisconsin, Madison, to study nacre. “Materials scientists have been interested in mother-of-pearl for decades because this material is 3000 times more resistant to fracture than its components,” she says, referring to the organic and crystalline constituents.

MOTHER OF PEARL CARVING
This is a mother and child carving done by machine with a glossy finish.The pearl [nacre ] shell glistens like opal colour.

Nacre is made mostly of aragonite—a calcium carbonate crystal—arranged in 500-nanometer-thick layers. It forms from ions in seawater that washes through an organic “scaffold” of thin, interconnected, horizontal sheets—the animal essentially lays the “mortar” before filling in the “bricks.” The iridescence of mother-of-pearl comes from the interference of light as it reflects from the thin, crystalline layers. But the beauty is only part of what drew Pupa Gilbert, of the University of Wisconsin, Madison, to study nacre. “Materials scientists have been interested in mother-of-pearl for decades because this material is 3000 times more resistant to fracture than its components,” she says, referring to the organic and crystalline constituents.

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Incrément d'enchère $1
Enchère de départ $6
Identifiant de l'enchère 540065
Observateurs 1 regarder
Vu 483 fois
Départs 26th Feb 2017 5:12pm PST
Prend fin 27th Feb 2017 11:08am PST

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