Tourmaline is a group of boron silicate minerals, that have the same physical properties and crystal structures, but different chemical compositions. Due to their different chemical configurations, color centers, and trace factors, the stone comes in more color combinations as compared to any other gemstone. The common colors include black, medium brown, dark brown, yellow, blue, neon blue, lime, forest green, pink, red, reddish purple, colorless, etc. Tourmaline is believed to offer strength to the body and spirit. They are considered improvisers for blood, lymphs, and the nervous system. Tourmaline is also considered a sign of creativity and often used by writers and artists as a talisman.
Tourmaline derived its name from “Thoramalli”, which is a Sinhalese word, denoting a group of gemstones discovered in Sri Lanka. Blue Indicolite, Pink Rubellite, and Green Verdelite are the most costly tourmalines found.
Mineral Family- A group minerals including Schorl, Elbaite, and Dravite
Refractive Index- 1.614-1.666
Hardness– 7- 7.5
Color- Colorless, black, yellow, dark brown, medium brown, lime to forest green, blue to neon, violet, pink, red, and many other shades
Other Deposits– Brazil, Africa, Sri Lanka, Madagascar, Namibia, Nigeria, Mozambique, Zambia, Pakistan, Malawi, Myanmar, Nepal, and Ethiopia.