Chinese Turquoise Oval Cabochon

The matrix in this oval Chinese turquoise cabochon varies from gemstone to gemstone and the color ranges from sky blue to blue-green to yellow-green, making it an ideal choice for custom pendant and earring designs. Use it to by itself to create a bold pendant or pair of earring, or combine it with complementary-color gemstones to add interest and variety to your designs—turquoise looks great with silver. Sourced from China, this turquoise features green/blue color. Turquoise is one of the birthstones for December. Turquoise is a soft, opaque gemstone that takes a good polish. Its sky blue color comes from the presence of copper; green tones are provided by iron traces. Turquoise sometimes has a rock matrix and varying shades of gray, brown or black veining due to inclusions or oxide stains. Natural turquoise is untreated, chemically or otherwise. Treatments for turquoise include electrochemical enhancement to improve color and stabilization withgives each gemstone significant resin that darkens and hardens the gemstone. Individual types of turquoise are usually named according to their source.

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Gemstone type: Turquoise
Stone shape: Oval
Stone size: 8 x 6mm, 14 x 10mm, 25 x 18mm, 12 x 10mm, 10 x 8mm, 16 x 12mm, 18 x 13mm
Stone type: Natural
Color: Sky blue to blue-green to yellow-green
Birthstone: December
Enhancement: Stabilized (S)
Mohs hardness: 5–6
Refractive index: 1.61
Specific gravity: 2.89
Cutting center: Taiwan, China