Sapphirine — specimen 0581, photo © NMNHS

Sapphirine — specimen 0581

Origin

South Asia

Sri Lanka

Sapphirine — specimen 0581, locality map

Data

Weight: 0.06 ct; size: 2.21 | 2.14 | 1.58 mm; shape: octagon; colour: medium dark very strongly greenish blue; very slightly greyish; clarity: slightly included; cut: very good; treatment: none.

Notes

Slightly included specimen; design ‘Eight’ by Glenn & Martha Vargas, excellent cut by Tan Pen.

Other specimens

More information from ‘Classification’

Sapphirine

In high-temperature metamorphic rocks or xenoliths with abundant aluminium and magnesium and low silicon; may occur as a primary magmatic mineral in subsilicic rocks (Anthony et al., 2001—2005). Very rare as faceted specimens.