Opal
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Opal Polished 42-48mm Points - Center Drilled
Bead World Gems
£1.77Sold Individually What is it: Opal is a hydrated amorphous form of silica; its water content ranges from 3-21% by weight, but is usually between 6-10%. Depending on formation conditions, opal may be transparent, translucent, or opaque while it's color...£1.77