Tanzanite Information

Tanzanite, a captivating gemstone discovered relatively recently in 1967, is renowned for its mesmerizing blue-violet hues. Found exclusively in Tanzania, near Mount Kilimanjaro, tanzanite's colors range from deep blue to violet and sometimes exhibit pleochroism—displaying different colors when viewed from different angles. This rare gemstone has quickly gained popularity for its striking beauty and limited availability, making it a prized choice for fine jewelry and collectors alike.

Facts About Tanzanite:

• Mineral Type: Tanzanite is a variety of the mineral zoisite, which is a calcium aluminum hydroxy silicate.
• Locations Found: Tanzanite is found only in the Merelani Hills of Tanzania, East Africa.
• Mohs Hardness: Tanzanite has a Mohs hardness of 6.5 to 7, making it relatively durable but requiring care to avoid scratches.
• Common Treatments: Most tanzanite undergoes heat treatment to enhance its color. This process can transform brown or greenish crystals into the desirable blue-violet hues.
• Refractive Index: The refractive index of tanzanite ranges from 1.691 to 1.700.
• Birefringence: Tanzanite exhibits strong birefringence, typically around 0.009.
• Specific Gravity: Tanzanite has a specific gravity of 3.35.

Tanzanite's rarity and unique coloration have made it highly sought after in the world of gemstones. Its rich violet-blue shades evoke a sense of luxury and sophistication, making it a prized addition to any jewelry collection. Whether admired for its intense color saturation or its exclusivity as a geographic gem, tanzanite continues to captivate with its allure and timeless elegance.