Scolecite — specimen 0068, photo © NMNHS

Scolecite — specimen 0068

Origin

South Asia

India

Data

Weight: 0.54 ct; size: 7.12 | 4.05 | 2.49 mm; shape: octagon; colour: colourless; clarity: eye clean; cut: good; treatment: none.

Notes

Very clean specimen; step cut style; good polish. Source: John Bradshaw, Coast to Coast Rare Stones International.

More information from ‘Classification’

Scolecite

Primarily in cavities in basalts; in gneisses and amphibolites, and in dikes derived from syenitic magmas (Anthony et al., 2001—2005). Extreme rarity as faceted specimens.