December is uniquely represented by two Avery birthstones: blue topaz and blue zircon. Both gemstones offer a captivating shade of blue, but possess distinct histories, geological origins, and gemological properties. This article will explore the characteristics of each, drawing upon available information to provide a comprehensive overview for gemstone enthusiasts and jewelry buyers.
A Historical Perspective
Garnet, traditionally associated with January, has a history stretching back to the Nile Delta in 3100 B.C., where Egyptian artisans incorporated it into jewelry and beadwork. Legend attributes illuminating properties to the stone, even suggesting its use as a lamp by Noah. The name “garnet” itself originates from the ancient Greek word for pomegranate seed, reflecting the gem’s characteristic color. While garnet holds a long and storied past, blue topaz and blue zircon have their own, albeit less extensively documented, histories.
Blue zircon’s origins are traced to the Persian word “zargun,” meaning “gold-colored.” In medieval times, zircon was believed to aid sleep, bring prosperity, and promote wisdom and honor to its wearer. The availability of blue zircon, however, is a more recent development, achieved through heat enhancement processes.
Geological Formation and Sources
Blue topaz, as it is commonly found today, is not a naturally occurring color. Most naturally occurring topaz is colorless. The vibrant blue hue is achieved through a process called irradiation, followed by heating. This enhancement process is permanent, transforming the raw topaz into the sought-after blue gemstone. The primary sources for topaz undergoing this process are Brazil, Sri Lanka, and Australia.
Zircon, similarly, exists in a variety of colors, with blue being a particularly desirable shade. This blue coloration is also achieved through heat enhancement. Major sources of zircon are located in Thailand, Cambodia, and Vietnam.
Both gemstones require careful handling during mining and processing to preserve their quality and enhance their brilliance.
Gemological Properties: Blue Topaz
Blue topaz ranks 8 on the Mohs Scale of Hardness, indicating excellent durability and resistance to scratching. This makes it a suitable choice for everyday wear in rings, pendants, and earrings. The gem’s brilliance and fire contribute to its aesthetic appeal. It is important to note that prolonged exposure to direct sunlight or extreme heat can cause damage and fading to the enhanced color. Therefore, proper care is essential to maintain its beauty.
Gemological Properties: Blue Zircon
Blue zircon possesses a slightly lower hardness, ranking 7.5 on the Mohs Scale. While still relatively durable, it is more susceptible to abrasion and wear than blue topaz. This means that zircon jewelry may require more careful handling to avoid scratches and maintain its luster. Zircon is also known for its exceptional luster and fire, qualities that contribute to its desirability.
Symbolism and Metaphysical Beliefs
While the provided sources do not detail extensive metaphysical beliefs surrounding blue topaz or blue zircon, zircon is noted for its historical associations with positive attributes. In the Middle Ages, zircon was believed to aid sleep, bring prosperity, and promote honor and wisdom. Blue topaz, while not explicitly linked to specific beliefs in these sources, is often associated with tranquility and communication in modern gemological interpretations.
Care and Cleaning
Due to their differing hardness levels, blue topaz and blue zircon require slightly different care routines. Blue topaz, with its higher hardness, can withstand more rigorous cleaning. However, both gemstones should be protected from harsh chemicals, ultrasonic cleaners, and extreme temperatures.
For blue topaz, gentle cleaning with warm, soapy water and a soft brush is recommended. Avoid abrasive cleaners that could scratch the surface. Blue zircon, being softer, requires even more delicate handling. Gentle cleaning with a soft cloth and mild soap is best. Avoid rough wear to prevent abrasion and maintain its brilliance.
James Avery and December Birthstones
James Avery Artisan Jewelry offers both blue topaz and blue zircon as Avery Birthstones for December, providing customers with a choice that reflects their individual preferences. The company’s collection showcases these gemstones in a variety of styles, from rings and pendants to bracelets and earrings. The availability of both options allows for a personalized expression of December’s birthstone symbolism.
Lab-Created Spinel
The sources also mention lab-created aqua spinel as an Avery birthstone for March. This gemstone, developed since the 1920s, offers a durable and colorful alternative to natural spinel. It ranks 8 on the Mohs Scale of Hardness, similar to blue topaz, and comes in a variety of colors, including oranges, pinks, blues, lavenders, and vivid reds.
Other Gemstones Mentioned
The provided sources briefly mention other gemstones offered by James Avery, including:
- Aventurine: A translucent quartz gemstone with a sparkling effect, mined in various locations worldwide and ranking 6.5 to 7 on the Mohs Scale.
- Garnet: Traditionally associated with January, with a history dating back to ancient Egypt and a ranking of 7 to 7.5 on the Mohs Scale.
- Lepidolite: A rare mica mineral ranging in color from purple to pink, mined in multiple countries and ranking 2.5 to 4 on the Mohs Scale.
- Mother-of-Pearl: A shimmering organic gemstone used in jewelry making.
These gemstones, while not the primary focus of the December birthstone discussion, demonstrate the breadth of James Avery’s gemstone offerings.
Summary Table: December Birthstones
| Gemstone | Mohs Hardness | Color(s) | Sources | Enhancement |
|---|---|---|---|---|
| Blue Topaz | 8 | Blue | Brazil, Sri Lanka, Australia | Irradiation & Heating |
| Blue Zircon | 7.5 | Blue | Thailand, Cambodia, Vietnam | Heat Enhancement |
Conclusion
Blue topaz and blue zircon both represent December with their captivating blue hues. While blue topaz offers greater durability and resistance to fading, blue zircon boasts exceptional luster and a rich historical association with positive attributes. Both gemstones, as offered by James Avery Artisan Jewelry, provide beautiful and meaningful options for commemorating December birthdays or simply appreciating the beauty of these enhanced gemstones. The choice between the two ultimately depends on individual preference and desired level of care.