| Country of Origin | United States |
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Check the listing for details. Candy Opal Polished Stone Slab aka Bubble or Bacon Opal #O13. Condition: New, Made in United States. Listed at 120.00 USD. Candy Opal aka Bacon Opal Polished Stone slab. This lovely Candy Opal is slabbed and polished on one face. Opal that is mostly opaque, with no play of color, is actually quite common. Opal is a hydrated silica material and it has a hardness of 5.5 to 6.5.