Blue Chalcedony 10mm Round Cabochon

This large round, untreated chalcedony cabochon has a silky, translucent blue color and its durability makes it ideal for setting in bezel mountings in nearly any style of jewelry. Combine it with complementary-color gemstones to create mixed-gem pendants, rings and bracelets or use it by itself to draw attention to its soft, blue color. A compact microcrystalline quartz, chalcedony (pronounced "cal-SID-nee") is a tough, durable gemstone that is ideal for carving, cabochons and beads. Pure chalcedony is white; individual chalcedonies are labeled by the colors that come from trace minerals. Most varieties of chalcedony are dyed to enhance their color.

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Gemstone type: Chalcedony
Stone shape: Round
Stone size: 10mm
Stone type: Natural
Color: Light Blue
Enhancement: None (N)
Mohs hardness: 6.5–7
Refractive index: 1.54–1.55
Specific gravity: 2.63–2.65
Brand: AGTA
Cutting center: China