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What Is the Birthstone for December?
Tanzanite, zircon, turquoise, and blue topaz are all official birthstones for December. This winter month is unique in having four distinct birthstones, each showcasing beautiful blue hues that evoke the cool tones of the season. Turquoise is considered the traditional birthstone, while tanzanite is the most recent addition, discovered only in 1967 in Tanzania. These birthstones offer those born in December a variety of options that symbolize wisdom, protection, and new beginnings.
Popular December Birthstone Jewelry
Tanzanite Birthstone
History & Meaning
Tanzanite is the exquisite blue-purple variety of the mineral zoisite that is found in only one location worldwide. Discovered in 1967 near Mount Kilimanjaro in Tanzania, this relatively recent gemstone quickly gained popularity due to its striking color and rarity. Tanzanite is believed to represent transformation and spiritual healing, making it a particularly meaningful stone for those seeking calmness and clarity during the contemplative winter season.
Color
Tanzanite's primary color ranges from deep blue to violet-blue, sometimes with purple undertones. The most valuable tanzanite exhibits a rich, saturated blue with subtle purple flashes.
Durability
Tanzanite has a hardness of 6.5 to 7 on the Mohs scale, making it relatively durable but still susceptible to scratching and damage if not handled with care.
Origin
Tanzanite is exclusively found in Tanzania. This limited geographical origin adds to its rarity and value.
Care & Maintenance
To clean tanzanite, use warm soapy water and a soft brush. Avoid ultrasonic and steam cleaners, as well as harsh chemicals that could damage the stone.
Zircon Birthstone
History & Meaning
Zircon is one of the oldest minerals on Earth, with a history dating back over 4 billion years. It has been used in jewelry for centuries and was highly valued in the Middle Ages for its supposed healing properties. For those born in December, zircon symbolizes clarity of mind and purpose, and helps to navigate life's challenges with confidence and foresight.
Color
While zircon is most associated with brilliant blue color, it naturally occurs in a spectrum of hues including green, yellow, brown, red, and colorless. Blue Zircon can span a range of blue tones, from pale sky blue to deep sea blue, and is particularly prized for its bright, sparkling appearance.
Durability
Zircon has a hardness of 6.5 to 7.5 on the Mohs scale. While it is reasonably durable, it can be brittle and prone to chipping if it is not protected properly.
Origin
Zircon is commonly found in various locations around the world, including Sri Lanka, Cambodia, Myanmar, and Australia. Blue Zircon is often sourced from Southeast Asia.
Care & Maintenance
Zircon may also be cleaned with warm soapy water and a soft brush. Ultrasonic cleaners can be used with caution, but steam cleaning is not recommended.
Blue Topaz Birthstone
History & Meaning
Blue topaz has a long history, with the name "topaz" thought to be derived from the Sanskrit word "tapas," meaning fire. Historically, topaz was found in various colors, but the blue variety gained popularity in the 20th century due to advancements in gemstone treatments that enhance its color. For people born in December, blue topaz represents calm, peace, and tranquility. It's associated with communication and clarity of thought, helping authentic expression and emotional balance during the busy holiday season.
Color
Blue topaz ranges in color from a pale sky blue to a deep, vibrant Swiss blue and a slightly darker London blue. All blue topaz varieties exhibit excellent clarity and brilliance that creates significant sparkle and light performance.
Durability
Blue Topaz is relatively durable with a hardness of 8 on the Mohs scale. However, it can still be prone to chipping and cracking if subjected to hard knocks or rough handling.
Origin
Blue Topaz is commonly found in several locations worldwide, including Brazil, Nigeria, Sri Lanka, and China. The natural blue variety is rare, so most blue Topaz available on the market is heat-treated to achieve its vivid color.
Care & Maintenance
Blue Topaz can be cleaned with warm soapy water and a soft brush. Avoid using ultrasonic or steam cleaners and protect the stone from sharp impacts to prevent chipping.
Turquoise Birthstone
History & Meaning
Turquoise has been cherished for thousands of years, with ancient civilizations such as the Egyptians and Persians valuing this gemstone. It has been used in jewelry, amulets, and as a decorative stone throughout history. For people with December birthdays, turquoise symbolizes protection and good fortune. It's believed to promote healing, strength, and balance — aligning with the reflective nature of the winter season when personal growth is often emphasized.
Color
Turquoise is easily recognized by its distinctive robin's egg blue to greenish-blue color. Turquoise has an opaque quality with a waxy to subvitreous luster often featuring unique veining patterns, giving it a distinctive appearance among gemstones.
Durability
Turquoise is relatively soft, with a hardness of 5 to 6 on the Mohs scale. It requires careful handling to avoid scratches and damage, especially in jewelry.
Origin
Turquoise deposits are commonly found in several regions, including the United States (notably in Arizona and New Mexico), Egypt, and China. The gemstone’s color and quality can vary depending on its origin.
Care & Maintenance
Turquoise should be cleaned only with a soft cloth and warm soapy water. Avoid using ultrasonic or steam cleaners and keep the stone away from harsh chemicals and high heat.
*Brilliant Earth does not carry Turquoise.
