Opal Mineral Specimens

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  • Ethiopian Opal Min 12.00ct Free-form Opal Rough
    $59.99
    $26.40
    You save: $33.59 (56%)
  • Ethiopian Opal Min 13.00ct Free Form Rough
    $91.99
    $78.19
    You save: $13.80 (15%)
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Gemstone Color

Optical Properties

The Beauty of Nature

In free form, these mineral specimens have a delicately beautiful shape and intricate nature. Ranging from Bulgarian Sphalerite to Chinese Barite, you can find hundreds of mineral specimens in their natural, rough form.