Photo by Eric Welch; courtesy of Opalos & Artesanias Mexicanas. Jorge Tamayo Carrillo (Opalos & Artesanias Mexicanas, Magdalena, Mexico) outlined current production of fire opal at his family’s mine, ...
Because they are a form of chalcedony quartz, fire agates are also more durable than opal, making them suitable for virtually any jewelry application. The 4.62 ct (10.22 × 9.16 × 7.19 mm) Mexican fire ...
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