2.52 cts Yellow / Green Sphene (Titanite) (SPY26)

Item Information

Dimensions (mm) 7 x 7 x 4mm
Weight (carats) not provided
Colors
Certified Gemstone

 

Weight: 1.42 cts
Clarity: SI1
Size: 6.9 x 6.85 x 4.12mm

Origin: madagascar
Treatment: none

SPHENE

This is a  natural untreated gemstone from Pakistan showing stunning colours on a beautiful green body.

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.

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$90.00 USD

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Pricing & Details

Auction ID 409977
Watchers 5 watching
Viewed 3,468 times
Starts 16th Mar 2014 2:48pm PDT

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