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BRIGHT GREEN YELLOW SPHENE
SIZE: 5.7 x 4.2 x 2.5mm
WEIGHT: 0.50ct
COLOUR: Bright Green Yellow
CUT: Oval
CLARITY: VSI under 10x magnification - very slight inclusion, not visible by unaided eye
LUSTER: Vitreous - Very Good Light Return/ Brilliance
TREATMENT: None
Refractive Index: 1.691 - 1.700
Hardness (Mohs' scale): 5.0 - 5.5
ORIGIN: Madagascar
Titanite or sphene is a calcium titanium nesosilicate mineral. Trace impurities of iron and aluminium are invariably present. Also commonly present are rare earth metals including cerium and yttrium.
As a gemstone, sphene is usually some shade of chartreuse and is highly prized for its exceptional dispersive power (0.051, B to G interval) which exceeds that of diamond. Unfortunately, low hardness precludes appropriate use as a ring stone: sphene is more suited to pendants or brooches, or left unset as a collector's stone.
Photo/s of the actual stone:
All our stones are natural, not man-made.
Items won need to be paid for within 7 days after closing of the auction. To save on shipping charges auctions may be combined for all the items won in 7 days.
As our aim is a 100% customer satisfaction, please contact us with regard to any problems you may have with the item.
