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Tourmaline gemstone
Tourmaline gemstone

Tourmaline gemstone

Tourmaline gemstone

A species of Tourmaline, Also known as Dravite, Paraíba Tourmaline, Cat's Eye Tourmaline, Uvite, Liddicoatite

Tourmaline gemstone is a unique gemstone renowned for its wide range of colors, including red, green, pink, blue, and multi-colored specimens. The most prized color of Tourmaline gemstone is considered to be the "Paraíba" variety, which is a bright, neon blue or greenish-blue color due to traces of copper. Tourmaline gemstone is found in many locations around the world, including Brazil, Afghanistan, and the United States.

General Info About Tourmaline gemstone

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Physical Properties of Tourmaline gemstone

Streak
White
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Chemical Properties of Tourmaline gemstone

Formula
Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)

Optical Properties of Tourmaline gemstone

Refractive Index
1.614-1.666
Birefringence
0.014-0.040
Pleochroism
Pink tourmaline - distinct: colorless-pink, pinkish-red; Orange/brown tourmaline - strong: yellowish-brown, dark greenish-brown; Yellow tourmaline - distinct: pale yellow, dark yellow; Violet/purple tourmaline - strong: light purple, purple; Blue tourmaline - strong: light blue, dark blue; Green tourmaline - strong: yellow-green, dark green
Dispersion
0.017
Optical Character
Uniaxial negative

Characteristics of Tourmaline gemstone

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Cultural Significance of Tourmaline gemstone

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Tourmaline gemstone as a Birthstone

The newest birthstone for October is the tourmaline gemstone. Its name means stone with mixed colors and aptly describes this stone that comes in a variety of hues. The pink version symbolizes love and compassion, while the black stone is said to represent strength and self-confidence. This beautiful jewel is the traditional gift for an eight-year wedding anniversary.

Common Questions People Also Ask

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