The Very Highest Quality Cornelian Information. . . |
Cornelian |
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Originally found in the deserts of Arabia and Egypt, it has also been found in the Rio Grande area, India, China, Colombia, Saxony, Scotland, West Germany and USA.
Technical Details
Chemical Composition and Name | SiO2 - Silicon Dioxide |
Hardness | 7 |
Specific Gravity | 2.65 - 2.66 |
Refractive Index (R.I.) | 1.543 - 1.552 to 1.545 - 1.554 |
Bi-refringence | 0.009 |
Optic Sign | Positive |
Optical Character | Uniaxial |
Gemstone | Weight | Shape | Size & Description | Available | Price £ | Price $ |
Cornelian | 3.45 | Cushion | 12x10 | Yes | £5.00 | $Ask |
Cornelian | 5.40 | Oval Cabochon | 14x10 | Yes | £10.00 | $Ask |
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