Cymophane — specimen 0455, photo © NMNHS

Cymophane — specimen 0455

Origin

South Asia

Sri Lanka

Data

Weight: 0.18 ct; size: 3.86 | 2.94 | 1.67 mm; shape: oval; colour: dark yellowish green; clarity: opaque; cut: fair; treatment: none.

Notes

Clean specimen; cabochon style cut with cat’s eye effect.

More information from ‘Classification’

Cymophane

A variety of chrysoberyl; exhibits chatoyancy caused by microscopic tube-like cavities or needle-like inclusions of rutile in an orientation parallel to the c-axis.