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About Opal
Opal is a member of the quartz family. Opal is considered an acrystalline or noncrystalline quartz, meaning that instead of being made of tiny cry...
About Welo Opal
Welo Opal: Ethiopia’s Fiery Gift to the Gem World
Welo opal (also spelled Wollo or Welo) is one of the most important opal discoveries of the mode...
