|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
This is a stunning carving done by a machine with much detail and a top finish.The pearl [nacre ] shell glistens like opal colour.
Weight 22.20 cts app
size 40 x 30 x 3 mm app
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.
Nice polish, brighter in the picture but still beautiful, rough on the bottom, very pretty, fast shipping and speedy service, thank you.125 CTS LARGE LABRADORITE POLISHED SLAB [MGW 2323 ]
Wow, SO beautiful, as per usual the shipping and customer service were excellent and I can't wait to make a creation with this gorgeous piece.29.15 CTS OPAL FLUORITE 'TIFFANY STONE' [MGW707]
|Starts||15th Jan 2018 10:00pm PST|
|Ends||18th Jan 2018 10:00pm PST|
|Registered Shipping||$19.00||10 Days|
|Standard Shipping||$4.00||21 Days|
|Shipping Insurance all providers $7.00 (optional)|