Indicolite (Tourmaline) Gemstones
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Hardness
7.0 on the Mohs scale.
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Occurrence
Madagascar, North America, Brazil, Myanmar (Burma), Africa, Siberia, Australia, Sri Lanka (Ceylon). Tourmaline and opal are the birthstones of the month of October. Tourmaline is the national gemstone of the United States.
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Appearance
Dark blue tourmaline is called indicolite, or indigolite. These are some of the most beautiful and sought after tourmalines.
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Enhancements
Green and Blue tourmaline is commonly heat treated to improve color.
More information on gemstone enhancements.
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Gemstone Family
Indicolite is a member of the Tourmaline gemstone family.
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0.14 ct. total |
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| 2.5mm Round Cut |
| Medium Light |
| Strong Green-Blue |
| Very Slightly Included |
| [N] Not enhanced. |
| Quantity Available: 4 pairs |
| Indicolite Tourmaline |
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2.04 ct. |
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| 8.7x6.8mm Emerald Cut |
| Medium Dark |
| Vivid Green-Blue |
| Slightly Included |
| [H] Heated to improve color. |
| One of a kind. |
| Indicolite Tourmaline |
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2.34 ct. |
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| 10.0x5.4mm Emerald Cut |
| Medium Dark |
| Vivid Green-Blue |
| Slightly Included |
| [N] Not enhanced. |
| One of a kind. |
| Neon Blue Tourmaline |
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9.90 ct. |
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| 13.5x11.6mm Cabochon, Oval Cut |
| Medium Dark |
| Moderately Strong Green-Blue |
| Slightly Included |
| [E] Routinely enhanced. |
| One of a kind. |
| Indicolite Tourmaline |
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0.24 ct. |
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| 5.0x3.2mm Cabochon, Oval Cut |
| Medium Light |
| Vivid Bluish Violet |
| Slightly Included |
| [H] Heated to improve color. |
| One of a kind. |
| Blue-Violet Tourmaline |
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9.37 ct. |
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| 17.9x7.9mm Fancy Cut |
| Medium Dark |
| Vivid Green-Blue |
| Slightly Included |
| [H] Heated to improve color. |
| One of a kind. |
| Indicolite Tourmaline |
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6.26 ct. |
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| 16.4x7.8mm Emerald, Millenium Cut |
| Medium |
| Vivid Green-Blue |
| Slightly Included |
| [A] Not normally enhanced. |
| One of a kind. |
| Indicolite Tourmaline |
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7.80 ct. |
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| 23.6x6.8mm Emerald, Millenium Cut |
| Medium |
| Vivid Green-Blue |
| Slightly Included |
| [A] Not normally enhanced. |
| One of a kind. |
| Indicolite Tourmaline |
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