Nigerian Tourmaline from Keffi, Nasarawa State, Nigeria

Nigerian Tourmaline from Keffi, Nasarawa State, Nigeria Nigerian tourmaline is known for its vibrant colors and is found in various shades, including pink, blue, green, and multicolored varieties. Pink tourmaline from Nigeria is prized for its range of tones, from pastel to deep, vivid hues. Blue tourmaline, also known as indicolite, can be light or deep blue. Green tourmaline, also called verdelite, spans from light to rich, emerald-like shades. Nigerian tourmaline also exhibits a range of metaphysical properties, including protection, grounding, and emotional healing. Here’s a more detailed look at the properties of Nigerian tourmaline: Color and Appearance: Pink Tourmaline: The pink tourmaline from Nigeria is celebrated for its wide range of shades, from delicate pastels to deep, vibrant pinks. Blue Tourmaline: Also known as indicolite, blue tourmalines from Nigeria can range from light, icy blue to a deep, oceanic hue. Green Tourmaline: Nigerian green tourmalines, or verdelites, exhibit a spectrum from light, leafy greens to rich, emerald-like shades. Multi-colored Tourmaline: Nigeria also produces tourmalines with multiple colors, including the popular pink and green combination. Physical Properties: Hardness: Tourmaline generally rates a 7 to 7.5 on the Mohs scale of hardness, making it a durable gemstone. Refractive Index: The refractive index of tourmaline typically ranges from 1.616 to 1.652. Specific Gravity: The specific gravity of tourmaline falls between 3.02 and 3.26. Transparency: Nigerian tourmaline can be translucent to opaque. Luster: It exhibits a vitreous (glass-like) luster. Crystal Structure: Tourmaline has a trigonal crystal structure.