100% Natural Multi Tourmaline Gemstone Rondelle Beads 4 mm Smooth 12 Inches Strands

Multi-tourmaline gemstones are fascinating and prized for their unique blend of colors. Tourmaline itself is a mineral group with several varieties, each with its own distinct coloration. When multiple colors of tourmaline are present in a single gemstone, it's often referred to as multi-tourmaline or rainbow tourmaline. Here are some key points about multi-tourmaline gemstones:

1. Color Range: Tourmaline can come in a wide array of colors including pink, red, green, blue, yellow, brown, and black. Multi-tourmaline stones can showcase a combination of these colors in one crystal.

2. Formation: The multi-color effect in tourmaline occurs due to variations in mineral composition during its formation. Different trace elements present during crystal growth can result in distinct color zones.

3. Durability: Tourmaline is generally a durable gemstone with a hardness of 7 to 7.5 on the Mohs scale, making it suitable for everyday wear in jewelry.

4. Varieties: Within the tourmaline family, specific varieties include:

   • Watermelon Tourmaline: Displays a pink center surrounded by a green outer layer, resembling a slice of watermelon.
   • Paraiba Tourmaline: Known for its vivid blue or green colors due to traces of copper, found primarily in Brazil.
   • Bi-colored and Tri-colored Tourmaline: These varieties exhibit two or three distinct colors within the same crystal.