21.61 CTS 'TIFFANY STONE' OPAL FLUORITE POLISHED [VS6148]

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
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TIFFANY STONE

This is  a natural untreated polished specimen of opal flourite from Utah Usa.This material comes from a beryllium mine and it is becoming  hard to mine in quantity.Tiffany Stone is composed of various  minerals such as bertrandite , beryl, calcite, chalcedony, cobalt, dolomite, fluorite, manganese oxide, rhodonite, quartz, zinc and  white opal potch. The purple color that characterizes Tiffany Stone was created by fluorine gases, while the stricking black-colored veins were caused by manganese oxide; all of which were sealed within the sedimentary layers, becoming opalized over time. Tiffany Stone does not display any opalescence or colour play that is common in Australian opal.This material will flourense a bright green under short wave ultra violet light.As far as i can find out the name is not registered but it seems to have been accepted in the trade as the "Tiffany stone'

Stunning patterns.

Well polished

Weight 21.61 cts app

Size 27 x 20 x 5 mm app

16h 4m 13s

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Pricing & Details

Bid Increment $1.00
Starting Bid $20.00
Auction ID 344130
Watchers 3 watching
Viewed 977 times
Starts 17th Aug 2017 6:03pm PDT
Ends 18th Aug 2017 6:00pm PDT

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