December boasts a remarkable array of birthstones, offering a spectrum of blue hues to celebrate those born in the final month of the year. While turquoise and blue zircon also hold historical significance, tanzanite and blue topaz have emerged as the most popular and widely recognized choices for December birthdays. This article will delve into the unique characteristics, histories, and symbolism of these two captivating gemstones, providing a comprehensive overview for enthusiasts, buyers, and students of gemology.
A History of December’s Choices
The tradition of associating specific gemstones with each month of the year dates back to ancient times, though the assigned stones have evolved over centuries. Initially, December was represented by turquoise, a stone cherished for its protective qualities and association with good fortune. Zircon, known for its brilliance, was also an early choice. As gemological understanding advanced and new stones were discovered, blue topaz and, more recently in 2002, tanzanite were added to the December birthstone family, reflecting industry demand and cultural preferences. The availability of multiple birthstones allows individuals to select a gem that resonates with their personal style and preferences.
Tanzanite: A Modern Marvel
Discovered relatively recently in the 1960s near the base of Mount Kilimanjaro in Tanzania, tanzanite quickly gained prominence in the gem world. This rare and exotic gemstone is celebrated for its captivating pleochroism – the ability to display different colors when viewed from different angles. Tanzanite’s hues range from deep purple and violet to rich blue, with the most highly prized stones exhibiting vibrant blue tones, particularly in larger sizes.
Tanzanite’s relative softness, with a hardness of 6-7 on the Mohs scale, requires careful handling. It is an excellent choice for earrings and pendants, minimizing the risk of scratches or impacts. Rings and bracelets featuring tanzanite require extra care to protect the gem’s surface. The gemstone is associated with inner transformation, healing, and spiritual self-discovery, believed to help wearers unlock their potential and embrace new beginnings. Its exclusivity and rarity contribute to its desirability among collectors and jewelry lovers.
Blue Topaz: Clarity and Calm
Blue topaz, in contrast to tanzanite, has been known for centuries, though its popularity as a December birthstone has grown in recent decades. Its appeal lies in its affordability, durability, and the serene beauty of its blue coloration. Blue topaz is created through irradiation, enhancing the natural color of colorless topaz. The resulting shades range from light Sky Blue to deep London Blue, with London Blue being the most saturated and valuable.
With a hardness of 8 on the Mohs scale, blue topaz is significantly more durable than tanzanite, making it a practical choice for everyday wear, including rings and bracelets. However, it is somewhat brittle and possesses perfect cleavage, meaning it can be susceptible to chipping or scratching with rough handling. Blue topaz symbolizes clarity of thought, emotional balance, and communication. Its soothing energy is believed to inspire honesty and deepen emotional connections, making it a meaningful gift for strengthening relationships.
Gemological Properties: A Side-by-Side Comparison
| Property | Tanzanite | Blue Topaz |
|---|---|---|
| Chemical Formula | Ca₂Al₃(SiO₄)₃(OH) | Al₂SiO₄(OH,F)₂ |
| Mohs Hardness | 6-7 | 8 |
| Color | Blue, Violet, Purple | Various shades of Blue |
| Pleochroism | Present | Absent |
| Cleavage | Imperfect | Perfect |
| Rarity | Rare | Relatively Common |
| Origin | Tanzania | Various (Brazil, Nigeria, Russia) |
Symbolism and Metaphysical Beliefs
Both tanzanite and blue topaz are imbued with symbolic meaning. Tanzanite, with its association with transformation and spiritual growth, is often chosen by those seeking enlightenment and personal development. Its vibrant colors are thought to stimulate the mind and enhance intuition. Blue topaz, on the other hand, is linked to communication, honesty, and emotional balance. It is believed to promote a sense of calm and serenity, fostering deeper connections with others. The choice between the two often depends on the individual’s personal beliefs and desired attributes.
Availability and Cost Considerations
Tanzanite’s rarity significantly impacts its cost. High-carat stones with intense color command premium prices, making it a sought-after investment for collectors. Blue topaz, being more readily available, is generally more affordable. The price of blue topaz varies depending on the shade and size, with London Blue typically being the most expensive. This difference in cost makes blue topaz a practical option for those seeking a beautiful and durable gemstone without a substantial financial commitment.
Care and Cleaning
Maintaining the beauty of both tanzanite and blue topaz requires proper care. Due to its lower hardness, tanzanite should be protected from scratches and impacts. Cleaning can be done with warm, soapy water and a soft brush. Avoid ultrasonic cleaners and harsh chemicals. Blue topaz, being more durable, can withstand slightly more rigorous cleaning, but it is still advisable to avoid harsh chemicals and ultrasonic cleaners due to its potential for brittleness. Regular cleaning with warm, soapy water will help maintain its brilliance.
December Birthstone Variations: A Calendar Breakdown
While both tanzanite and blue topaz are prominent December birthstones, some sources suggest a more nuanced assignment based on the day of the month. This practice, while not universally recognized, adds another layer of personalization to the birthstone selection process.
- December 4th: Blue Topaz
- December 5th: Tanzanite
- December 6th: Turquoise
- December 7th: Blue Zircon
- December 8th: Blue Topaz
- December 9th: Tanzanite
- December 10th: Turquoise
- December 11th: Blue Zircon
- December 12th: Blue Topaz
- December 13th: Tanzanite
- December 14th: Turquoise
- December 15th: Blue Zircon
- December 16th: Blue Topaz
- December 17th: Tanzanite
- December 18th: Turquoise
- December 19th: Blue Zircon
- December 20th: Blue Topaz
- December 21st: Tanzanite
- December 22nd: Turquoise
- December 23rd: Blue Zircon
- December 24th: Blue Topaz
- December 25th: Tanzanite
- December 26th: Turquoise
- December 27th: Blue Zircon
- December 28th: Blue Topaz
- December 29th: Tanzanite
- December 30th: Turquoise
- December 31st: Blue Zircon
Conclusion
Tanzanite and blue topaz represent the captivating beauty and diverse symbolism of December’s birthstones. While tanzanite offers a rare and exotic allure, associated with transformation and spiritual growth, blue topaz provides a durable and affordable option, symbolizing clarity and emotional balance. The choice between these two stunning gemstones ultimately depends on individual preferences, desired attributes, and budgetary considerations. Both stones offer a meaningful and beautiful way to celebrate a December birthday.