American Mined™ BlueBird Turquoise™ Round Cabochon

BlueBird Turquoise™, mined in Kingman, Arizona, displays a vivid robin's egg blue color with minimal matrix. What little matrix is present tends to be fine and varies from light to dark gray color, making each gemstone unique and ideal for custom designs. Turquoise is one of the birthstones for December. Turquoise is a soft, opaque gemstone that takes a good polish. The color of this variety comes from the presence of copper. Natural turquoise is untreated, chemically or otherwise. Treatments for turquoise include electrochemical enhancement to improve color and stabilization with resin that darken and harden gemstone. Individual types of turquoise are usually named according to their source. Rio is proud to offer the American Mined™ Collection, a growing selection of gemstones sourced from mines located here in America. These gemstones consistently present the excellent color, clarity and quality we look for in every gem we offer you. Each of these gemstones allows us to provide a clear, documentable path from the mine to your bench; you and your customers can be confident that every one is mined, cut and processed under conditions that meet all standards for worker safety, environmental protection and responsible production.

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Gemstone type: Turquoise
Stone shape: Round
Stone size: 6mm, 4mm
Stone type: Natural
Color: Robin Egg Blue, Robin's Egg Blue
Birthstone: December
Enhancement: Stabilized (S)
Mohs hardness: 5–6
Refractive index: 1.61
Specific gravity: 2.89
Brand: American Mined, AGTA
Mineral source: ARIZONA
Cutting center: China