JDMISGem Reference
Synthetic · Synthetic Opal

Synthetic Opal — Black

Synthetic Opal — Black — Synthetic Opal

Lab-grown black opal delivers vivid colour on a black ground at low cost. Its tidy mosaic pattern, chalky SW fluorescence and columnar side structure separate it from natural black opal.

Colour
grey
Transparency
Opaque
RI
1.430–1.470
SG
1.97–2.20
Mohs
4.5–6.0
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