FREE: 2.86 ct Best Cabochon Cut Green Opal Natural Gemstone
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Description
The listing, 2.86 ct Best Cabochon Cut Green Opal Natural Gemstone has ended.
Gem Type Opal Color Green Shape Cabochon Size(LxWxD) 13.73 x 8.39 x 4.20 mm Weight 2.86 ct Hardness 6.5 Luster Good Clarity Opaque Treatment: Heated Origin Peru Refractive Index 1.37-1.47 Specific Gravity 2.1
This has no flash. It is a solid colored opal - like blue, or pink peruvian opal. Precious opals are white or milky stones with a beautiful shifting array of colors inside. Common opals are opaque, without dynamic plays of color. Opal is a hydrated silica material. It is composed of sub-microscopic silica spheres that are bonded together with water and additional silica. Common opal may be any of several different colors, including green.