2.7ct Natural Bi-Color Tourmaline Gemstone - October Birthstone - 13x6x4mm

Tourmaline:

Tourmaline is a crystalline mineral that belongs to a group of complex borosilicate minerals. It is known for its wide range of colors and variations, making it a popular gemstone. Tourmaline crystals can form in various shapes, including long prismatic columns and thick, stubby crystals.

Name: Tourmaline

Dimensions: 13x6x4mm

Weight: 2.7ct

Treatment: None