40 carats Natural Tourmaline Gemstones Parcel

This is a 40 carats Parcel of Natural Tourmaline Gemstones with all demanding colors such indicolite Blue , mint green, pink colors.

Total Weight: 40 carats
Dimension: 7mm to 13mm
Shape: Oval, octagonal, emerald cut
Colors: Green, pink, bi Color, indicolite, blue, emerald green,
Cut: Excellent
Clarity: Si, Vs, VVS, Eye clean
Origin:Afghanistan mixed
Treatment: No

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Tourmaline is a mineral group that consists of several gemstone varieties with a complex chemical composition. It is a crystalline boron silicate mineral. Tourmaline is known for its wide range of colors and is prized for its beauty and versatility in the jewelry industry.

Some key features of tourmaline include:

1. Colors and Varieties: Well-known tourmaline varieties include:
• Rubellite: A red to pink variety of tourmaline.
• Indicolite: A blue variety of tourmaline.
• Watermelon Tourmaline: A variety that displays a pink center and green outer rim, resembling a slice of watermelon.
• Paraíba Tourmaline: A vibrant blue or green variety found primarily in Brazil, known for its exceptional color saturation.
• Schorl: The most common variety of tourmaline, usually black or dark brown.
2. Crystal Structure: Tourmaline crystals have a complex trigonal or hexagonal crystal system.
3. Durability and Hardness: Tourmaline has a hardness of 7 to 7.5 on the Mohs scale.
4. Occurrence: Tourmaline is found in various locations worldwide, including Brazil, Sri Lanka, Nigeria, Madagascar,Pakistan, Afghanistan, and the United States (mainly California and Maine).
5. Metaphysical Properties: Tourmaline is said to promote inspiration, balance, protection, and overall well-being.

In addition to its use in jewelry, tourmaline is also used in various industries, including electrical equipment manufacturing, as it exhibits pyroelectric and piezoelectric properties.