December boasts a unique distinction among the months: it possesses not one, but three recognized birthstones – turquoise, blue zircon, and tanzanite. Each gem offers distinct aesthetic qualities and symbolic meanings, providing a diverse range of options for those seeking a December birthstone ring. This article will delve into the history, geological origins, gemological properties, and significance of these three captivating gemstones, with a focus on their use in ring designs.
A Historical Overview of December Birthstones
The tradition of associating specific gemstones with each month of the year has ancient roots, though the specific assignments have evolved over time. Turquoise is the most historically recognized December birthstone, with evidence of its use dating back millennia. Blue zircon and tanzanite are more recent additions to the December birthstone family. Zircon gained recognition as a December birthstone relatively recently, while tanzanite was officially added to the list in 1952. The availability of multiple birthstones for December allows for a personalized selection based on individual preference and symbolic resonance.
Geological Formation and Sources
The origins of these three December birthstones are geographically diverse. Turquoise, as its name suggests, is often associated with the color of the turquoise stone. It forms in relatively shallow deposits, often near copper mines, through a process of weathering and hydration of copper-rich rocks.
Zircon, described as the oldest mineral on Earth, is found in a variety of geological settings, including igneous, metamorphic, and sedimentary rocks. Significant sources of zircon include Australia, Thailand, Sri Lanka, Tanzania, Cambodia, Canada, and the United States.
Tanzanite, uniquely, is found in only one location worldwide: a small area near Mount Kilimanjaro in Tanzania. This limited geographical source contributes to its rarity and value. Tanzanite forms within metamorphic rocks and is a variety of the mineral zoisite. The gem is often heat-treated to enhance its blue shades, making them more similar to sapphire.
Gemological Properties
Each of the December birthstones possesses unique gemological characteristics that contribute to its beauty and desirability.
Turquoise: While the sources do not provide specific details on turquoise’s hardness or chemical composition, it is known for its range of hues, from deep green to bright blue. Its versatility makes it suitable for various jewelry designs, including rings.
Blue Zircon: The sources do not provide specific gemological data for blue zircon. However, zircon, in general, is known for its brilliance and fire.
Tanzanite: Tanzanite is a variety of the mineral zoisite and exhibits a range of exquisite blue-purple colors. It is prone to scratching and is often best suited for earrings and pendants, though it can be found in rings with careful setting and wear.
The following table summarizes the available information:
| Gemstone | Color Range | Primary Sources | Notable Characteristics |
|---|---|---|---|
| Turquoise | Deep green to bright blue | Various, often near copper mines | Versatile, historically significant |
| Blue Zircon | Not specified | Australia, Thailand, Sri Lanka, Tanzania, Cambodia, Canada, United States | Brilliant, fiery |
| Tanzanite | Blue-purple | Tanzania (near Mount Kilimanjaro) | Rare, prone to scratching, often heat-treated |
Symbolism and Metaphysical Beliefs
Throughout history, gemstones have been imbued with symbolic meanings and metaphysical properties. Each of the December birthstones carries its own set of associations.
Turquoise is associated with loyalty, great love, health, good fortune, and peace. Blue zircon symbolizes chastity, virtuousness, and trustworthiness. Tanzanite represents the heart, intellect, intuition, and purity. These symbolic meanings add another layer of significance to December birthstone rings, making them not just beautiful adornments but also meaningful talismans.
December Birthstone Rings: Styles and Considerations
The choice of birthstone significantly influences the style and design of a December birthstone ring. Turquoise rings often feature a more bohemian or southwestern aesthetic, while zircon and tanzanite rings can be incorporated into more classic and elegant designs.
Rings featuring 18k gold and natural zircon, such as signet rings with marquise-cut stones, are available. These rings can symbolize strength, stability, and grounding, as zircon is associated with the root chakra. Gold-filled rings featuring blue topaz CZ (cubic zirconia) as a December birthstone alternative are also available, offering a durable and tarnish-resistant option. Tanzanite, due to its relative softness, is often set in protective settings to minimize the risk of scratching.
Care and Cleaning
Proper care is essential to maintain the beauty and longevity of December birthstone rings. Gold-filled rings can be safely worn in water, though removing them during activities involving significant moisture is recommended. As tanzanite is prone to scratching, it is best suited for earrings and pendants, but can be worn in rings with careful consideration. Specific cleaning instructions for each gemstone should be followed to avoid damage.
Conclusion
The December birthstones – turquoise, blue zircon, and tanzanite – offer a captivating array of choices for those seeking a meaningful and beautiful ring. Each gemstone boasts a unique history, geological origin, and symbolic significance. Whether one prefers the traditional allure of turquoise, the brilliance of zircon, or the rarity of tanzanite, a December birthstone ring is a cherished gift that celebrates the unique spirit of those born in the final month of the year. The availability of three options allows for a personalized selection, ensuring that the chosen gemstone resonates with the wearer’s individual style and beliefs.