JDMISGem Reference
Silica · Opal

Green Opal

Green Opal — Opal

Green opal spans common apple-green material and rare green precious opal with play-of-colour, mostly from Peru, Brazil and Ethiopia.

Colour
green
Transparency
Variable
RI
1.370–1.470
SG
1.98–2.23
Mohs
5.0–6.5
Birthstone
October
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