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KYANITE CROSS PENDANT -SILVER 13.8 CTS [GT490 ]

KYANITE CROSS PENDANT -SILVER 13.8 CTS [GT490 ]

Item Information

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

KYANITE CROSS PENDANT

This is a natural untreated stone set in silver and it is ready to be worn.Delicate design on the silver bail.22

Stamped silver 925

Total weight 13.8 cts app

Size 19.2x 13.5x4.7 mm app

 
 
 
Kyanite is a polymorph with two other minerals; andalusite and sillimanite. A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals. Kyanite is an attractive mineral that has a near sapphire like blue color in some especially nice specimens. Kyanite has a unique characteristic in that it has a wide variation in hardness, in the same crystal. The hardness of kyanite is approximately 4.5 when scratched parallel to the long axis of the crystal and approximately 6.5 when scratched perpendicular to or across the long axis. Other minerals usually have variable hardness on different crystal faces due to a different concentration and oreintation of the atoms in the structure

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$31 irenejohnson
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Pricing & Details

Bid Increment $1
Starting Bid $29
Auction ID 560426
Watchers 5 watching
Viewed 1,804 times
Starts 4th May 2018 5:55pm PDT
Ends 6th May 2018 10:50am PDT

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