COLOURFUL SPHENE 4.45 CTS [S5051]

Item Information

Dimensions (mm) 11 x 8 x 5mm
Weight (carats) not provided
Colors
Certified Gemstone

SPHENE

This is a natural untreated stone ready for setting.I havent given a grading as this stone has some inclusions-most stones in this price area will have inclusions howere it is a delightful stone with some rainbow colours reflecting off it.We have taken the stone on a mirror so you can see the cutting and also a photo of the back of the stone in full sunlight.

WEIGHT 4.45

 

Sphene (or Titanite) is a rare collector gemstone with an unusually high refractive index and a hardness of 5 -5.5. Sphene is named from the greek word for wedge, because of its typical wedge shaped crystal habit Because of its high dispersion and refractive index, a well cut sphene can display stunning brilliance. Sphene is somewhat soft and as a result more suitable as a pendant than as a ring stone.

Sphene is widely distributed as an accessory mineral, particularly in coarse-grained igneous rocks such as syenite, nepheline syenite, diorite and granodiorite. It occurs similarly in schists or gneisses and in some metamorphosed limestones. Collectors appreciate its crystals, in which twinning is common, as well as the striking appearance of the faceted gemstones.

12h 17m 31s

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Pricing & Details

Bid Increment $1.00
Starting Bid $51.00
Auction ID 158499
Watchers 2 watching
Viewed 570 times
Starts 9th Dec 2016 5:02pm PST
Ends 10th Dec 2016 5:00pm PST

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