December is unique among the calendar months, boasting not one, but four recognized birthstones: Tanzanite, Turquoise, Blue Zircon, and Blue Topaz. Each of these gemstones displays a captivating shade of blue, mirroring the cool tones of the winter season. While Turquoise holds the distinction as the most traditional choice, admired for centuries, Tanzanite is the most recent discovery, first unearthed in Tanzania in 1967. These gemstones are associated with powerful meanings such as wisdom, protection, and new beginnings, offering December-born individuals a diverse selection to express their individuality. The specific birthstone assigned to a date within December varies, with a cyclical pattern of assignment throughout the month.
A History of December’s Gems
The history of December’s birthstones is varied, reflecting the different origins and cultural significance of each gem. Turquoise, as its name suggests – derived from the French “pierre tourques” meaning “Turkish stone” – arrived in Europe via Turkish traders. Its use dates back millennia, with evidence of its adornment by Egyptian rulers as a symbol of status and protection. Turquoise was considered a talisman against negative energy in the ancient world, offering a safeguard to its wearer.
Tanzanite, in contrast, has a much shorter recorded history. Discovered in Tanzania in 1967, it was initially known as “Blue Zoisite” before being renamed Tanzanite in honor of its country of origin. Its relatively recent discovery contributes to its rarity and increasing desirability. The gem’s unique pleochroism, the ability to display different colors when viewed from different angles, quickly captured the attention of gemologists and jewelry enthusiasts alike.
Blue Zircon and Blue Topaz also have long histories, though their association specifically with December is more recent. Both have been valued for their beauty and brilliance for centuries, often used in jewelry and ornamental objects.
Geological Formation and Sources
The geological origins of these four birthstones are distinct. Tanzanite’s formation is particularly remarkable, occurring approximately 600 million years ago during the Ediacaran Period. Its development was spurred by intense heat and tectonic activity within a unique geological environment found exclusively near Mount Kilimanjaro in Tanzania. Gemologists estimate that tanzanite is up to a thousand times rarer than diamonds, as it is found in a very limited area in the Manyara Region at the base of the mountain. The odds of discovering tanzanite elsewhere on Earth are estimated to be around one in a million.
Turquoise, on the other hand, has been mined in various locations throughout history. While the name originates from its passage through Turkey, sources are diverse.
Blue Zircon and Blue Topaz are found in a wider range of geological settings, though specific mining locations are not detailed in the provided sources.
Gemological Properties
The provided sources do not offer detailed gemological properties such as chemical composition, refractive index, or hardness. However, some characteristics are noted. Tanzanite is prized for its deep blue-violet color, sometimes displaying shades of purple and red depending on the viewing angle due to its pleochroism. Turquoise is known for its soothing blue-green hue. Blue Topaz and Blue Zircon are noted for their bright and radiant blue colors.
The “Queen of Kilimanjaro,” a particularly famous tanzanite, weighs 242 carats and is set with tsavorite garnets and diamonds, demonstrating the gem’s potential for large, spectacular specimens.
A table summarizing the birthstones and their associated dates in December is as follows:
| Date in December | Birthstone |
|---|---|
| 4th | Blue Topaz |
| 5th | Tanzanite |
| 6th | Turquoise |
| 7th | Blue Zircon |
| 8th | Blue Topaz |
| 9th | Tanzanite |
| 10th | Turquoise |
| 11th | Blue Zircon |
| 12th | Blue Topaz |
| 13th | Tanzanite |
| 14th | Turquoise |
| 15th | Blue Zircon |
| 16th | Blue Topaz |
| 17th | Tanzanite |
| 18th | Turquoise |
| 19th | Blue Zircon |
| 20th | Blue Topaz |
| 21st | Tanzanite |
| 22nd | Turquoise |
| 23rd | Blue Zircon |
| 24th | Blue Topaz |
| 25th | Tanzanite |
| 26th | Turquoise |
| 27th | Blue Zircon |
| 28th | Blue Topaz |
| 29th | Tanzanite |
| 30th | Turquoise |
| 31st | Blue Zircon |
Symbolism and Metaphysical Beliefs
Each of December’s birthstones carries symbolic meaning. Tanzanite is believed to possess high-vibration healing energy and is considered a manifestation magnet, guiding individuals toward wisdom and consciousness. It is also associated with spiritual awareness and is a traditional gift for a 24th wedding anniversary.
Turquoise represents peace and wisdom, aligning with the compassionate nature often associated with those born in December. It was historically worn as a protective talisman against negative influences.
While the sources do not detail specific metaphysical beliefs associated with Blue Zircon and Blue Topaz, the overall association of blue gemstones with tranquility and clarity suggests similar symbolic connections.
Care and Cleaning
The provided sources do not offer specific care and cleaning instructions for these gemstones. However, given their varying hardness and potential for cleavage, it is generally advisable to clean them with mild soap and warm water, using a soft brush to remove any dirt or debris. Avoid harsh chemicals and ultrasonic cleaners, which could potentially damage the stones.
Conclusion
December’s selection of birthstones – Tanzanite, Turquoise, Blue Zircon, and Blue Topaz – offers a rich tapestry of color, history, and symbolism. From the ancient origins of Turquoise to the recent discovery of Tanzanite, each gem holds a unique place in the world of gemstones. Their association with wisdom, protection, peace, and spiritual awareness makes them meaningful choices for those born in the final month of the year. The variety ensures that every December-born individual can find a gemstone that resonates with their personality and style.