TIFFANY ROUGH OPAL FLOURITE 41.2 CTS DT-1714

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Colors

TIFFANY OPAL ROUGH

 SHADES OF PURPLE COLOUR

NICE PATTEN

PICTURE TAKEN WET TO SHOW HOW IT WILL FINISH AFTER POLISH 

 Weight:  41.2 CTS APPROX.

 SIZE: 33  X 22 X  5 MM APPROX

This is  a parcel of natural untreated rough specimens 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 AUSTRLISN OPAL. This material will flourense a bright GREEN under short wave ultra violet light.It is best to use a mask when cutting this material.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'

1d 10h 15m 1s

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Pricing & Details

Bid Increment $1.00
Starting Bid $21.00
Auction ID 412631
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Viewed 546 times
Starts 23rd Sep 2017 10:03pm PDT
Ends 26th Sep 2017 10:00pm PDT

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