December birthstone earrings feature three distinct gems: blue topaz, turquoise, and tanzanite. Our collection of 909 sterling silver earrings showcases all three options, each with its own character. Blue topaz rates 8 on the Mohs hardness scale, making it resistant to scratching. Turquoise, a copper-aluminum phosphate mined in the American Southwest and Iran, scores 5-6. Tanzanite comes from a single source near Mount Kilimanjaro in Tanzania. Prices in this collection range from $436 to $21,856, with free shipping to all US addresses.
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December has three recognized birthstones: blue topaz, turquoise, and tanzanite. The American Gem Trade Association added tanzanite in 2002 to expand options beyond the traditional turquoise and topaz.
Blue topaz is the most durable December birthstone at 8 on the Mohs hardness scale. Tanzanite rates 6-7 and turquoise rates 5-6, though all three work well in earrings since they receive less wear than rings.
Tanzanite formed under specific geological conditions found only in the Merelani Hills near Mount Kilimanjaro. The combination of heat, pressure, and mineral composition required for tanzanite has not been replicated elsewhere on Earth.