Tourmaline Information

Tourmaline, a gemstone of striking beauty and diversity, is celebrated for its wide range of colors and unique crystal formations. Found in hues ranging from vibrant greens and blues to deep pinks and reds, tourmaline is known for its pleochroism—a phenomenon where the stone exhibits different colors when viewed from different angles. This fascinating gem has been cherished for centuries across cultures, believed to possess mystical properties and protective energies. Its vivid colors and metaphysical qualities make tourmaline a favorite among gem collectors and jewelry designers alike.

Facts About Tourmaline:

• Mineral Type: Tourmaline is a complex borosilicate mineral with a variety of chemical compositions. The most common is the elbaite group.
• Locations Found: Tourmaline is found in many locations worldwide, including Brazil, Afghanistan, Sri Lanka, Nigeria, Madagascar, and the United States (California and Maine).
• Mohs Hardness: Tourmaline has a Mohs hardness of 7 to 7.5, making it relatively durable and suitable for various jewelry applications.
• Common Treatments: Tourmaline is often untreated. However, some stones may undergo heat treatment to improve color or clarity.
• Refractive Index: The refractive index of tourmaline varies depending on the chemical composition and color, typically ranging from 1.614 to 1.666.
• Birefringence: Tourmaline exhibits strong to moderate birefringence, depending on the type and variety, ranging from 0.017 to 0.040.
• Specific Gravity: Tourmaline has a specific gravity of 2.82 to 3.32, varying with its chemical composition.

Tourmaline's vibrant colors and mystical properties continue to fascinate gem enthusiasts and spiritual seekers alike. Whether prized for its aesthetic appeal or believed metaphysical benefits, tourmaline remains a gemstone of enduring popularity and intrigue. Its diverse range of colors ensures there's a tourmaline to suit every taste and occasion, making it a versatile and cherished addition to any gemstone collection.