JDMISGem Reference
Synthetic · Synthetic Opal

Synthetic Opal — White

Synthetic Opal — White — Synthetic Opal

Lab-grown white opal mimics the look of Coober Pedy white opal but shows a too-regular mosaic pattern under magnification. Chicken-wire structure, no phosphorescence and low SG separate it.

Colour
orange
Transparency
Translucent to opaque
RI
1.430–1.470
SG
1.97–2.20
Mohs
4.5–6.0
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