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The opalescent is opalescent. This is called rainbow-like iridescence, which changes according to the view and makes the opals so unique.

Color: all colors, partial opalizing
Mohs hardness: 5.5-6.5
Density: 1.98-2.5
Transparency: transparent to opaque
Fracture: small-shell, splitting, brittle
  • opal
    nameØtypeType of cutunititem No.
    opal5,0x​3,0 mmreal, genuineCabochin oval1488322
    opal6,0x​4,0 mmreal, genuineCabochin oval1488323
    opal7,0x​5,0 mmreal, genuineCabochin oval1488324
    opal8,0x​6,0 mmreal, genuineCabochin oval1488325
    opal9,0x​7,0 mmreal, genuineCabochin oval1488326

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