BRIGHT GREEN YELLOW SPHENE

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.
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