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Ethiopian Opal Cabs, Oval, 6mm x 8mm
- 8111404
- £12.65 exc.VAT
Opal is a highly sought after gemstone due to its rainbow like hues and unique formation. Most commonly found near hot springs and geysers as a result of silica like substances deposited into crevices of rock while water evaporates. Opal is commonly know to be fragile and heat sensitive. Contact with water will also ruin this gemstone. Our two variety's are from Australia and Ethiopia. Other Deposits are found in Czech Republic, Canada, Slovakia, Hungary, Turkey, Indonesia, Brazil, Honduras and Guatemala
Shape: Oval
Size: 6 x 8 mm
Height: 3.2 mm
Weight: 0.15 grams
Colour: multicolored
Moh's hardness: 5½ - 6½
Density: 1.98 - 2.5
Cleavage: None
Refractive index: 1.37 - 1.52
Dispersion: 0.013 (0.008)
