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Common Opal

All the continents on earth produce common opal. Only very few countries produce opal of gem quality. Common opal is referred to as opal with no color play. Most common opal ca be grey, white to even black opal. Black opal is only valuable when it has colors of the spectrum. Silica spheres are a big contributor to the way opal shows color. The straighter and neater the silica spheres the better the color will be. The larger the silica spheres are the redder the color. If the silica spheres are unevenly stacked, you have common opal, With no color.  The light has nowhere to go and stops before it…

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Boulder opal

Boulder opal is  the most organic type of gemstone is the boulder opal. Being an opal that has a host-rock, the boulder opal forms in veins, fissures and cracks in the ironstone. The opal moves with the cracks in the ground making it undulate, so the face of a cut and finished boulder opal will not usually be even faced or domed. A Boulder Opal Pendant is an organic type of jewelry and will have beautiful curves and and waving shapes that go with a boulder opal pendant. Opal comes in all form and types. Opal Matrix is a form of opal that can be treated or untreated. Some Opal…

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