Sphalerite — specimen 0198, photo © NMNHS

Sphalerite — specimen 0198

Origin

Europe

Spain

Sphalerite — specimen 0198, locality map

Data

Weight: 0.15 ct; size: 3.04 | 3.03 | 2.14 mm; shape: round; colour: medium orangey yellow; strong; clarity: eye clean; cut: good; treatment: none.

Notes

Clean specimen; good mixed style cut.

More information from ‘Classification’

Sphalerite

Formed under a wide range of low- to high-temperature hydrothermal conditions; in coal, limestone, and other sedimentary deposits (Anthony et al., 2001—2005). There are faceted specimens from Spain over 350 carats.