Crystal Opal
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Physical & Optical Properties
Mohs Hardness
| Mohs | Reference mineral | Crystal Opal |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | |
| 6 | Orthoclase | ● |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Crystal System
Value & Market
Where to Buy Crystal Opal
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About Crystal Opal
O opala cristal é uma variedade de opala preciosa de alta qualidade, distinguida pela sua transparência ou semitransparência que permite ver o jogo de cores internamente. Esta clareza aumenta a vivacidade e profundidade das cores, fazendo com que o fogo pareça flutuar dentro da pedra. Os opalas cristal exibem todo o espetro de cores contra um fundo claro, sendo muito apreciados pelos colecionadores e joalheiros. A Austrália é a principal fonte mundial.