Aquamarine, the serene blue gemstone associated with March, and Tanzanite, the vibrant violet-blue stone of December, both hold significant places in the world of gemstones and birthstone lore. While separated by months and distinct geological origins, both stones are prized for their beauty, durability, and increasing popularity in fine jewelry. This article will explore the history, properties, and symbolism of these captivating blue gems, drawing exclusively from available sources.
History and Lore
Aquamarine’s history is deeply intertwined with the sea. Its name, derived from the Latin “aqua marina,” translates to “seawater,” aptly describing its cool, blue hues. Sources indicate the gemstone was believed to protect sailors, ensuring a safe voyage. Beyond maritime associations, aquamarine is also recognized as a symbol of youth, health, and hope. Its regal connection is notable; Princess Diana famously favored aquamarine jewelry, and a piece from her collection was later incorporated into Meghan Markle’s engagement ring, linking generations through this striking stone. Aquamarine is also the traditional gemstone for the 19th wedding anniversary, signifying enduring love and happiness.
Tanzanite, in contrast, boasts a much more recent history. Discovered relatively recently, it quickly gained popularity for its unique violet, blue, and purple hues. Sources state that Tanzanite shares a resemblance to the blue form of sapphire, often serving as an alternative to the more expensive gem. Its ability to display different colors when exposed to light adds to its allure. December-born individuals are fortunate to have Tanzanite as one of their birthstones, alongside Turquoise and Zircon, all exhibiting striking shades of blue.
Geological Formation and Sources
Aquamarine is a variety of the mineral beryl, known for its hardness and clarity. Sources indicate that, unlike emeralds, aquamarine is often found in relatively large, clean crystals. The Santa Maria mine in Brazil is cited as a particularly famous source.
Tanzanite, a relatively new gemstone, is found in a very limited geographical area: the Merelani Hills of northern Tanzania. This restricted source contributes to its rarity and value. Tanzanite styles well with almost all metals, including gold, silver, and platinum, and is often paired with diamonds to enhance its brilliance.
Gemological Properties
Aquamarine’s appeal lies in its clarity and brilliance. It registers a Mohs hardness of 7.5-8, making it a durable gemstone suitable for everyday wear, even in engagement rings. The gemstone ranges in color from light blue to aqua blue, with higher saturation increasing its value. Clarity is also a crucial factor, with high-quality aquamarine being as free as possible from inclusions. Jewelers offer aquamarine in various cuts, including oval, pear, emerald, marquise, and heart-shaped, set in a range of metals like sterling silver, 10K, 14K, 18K yellow gold, white gold, rose gold, and platinum.
Tanzanite is also a silicate mineral, displaying vitreous hues of blue. Sources describe three distinct shades: London blue, Swiss blue, and Pale Sky blue, based on saturation levels. Tanzanite’s ability to showcase different colors when light falls on it is a defining characteristic. It is often found in jewelry designs ranging from simple studs to bold neckpieces, and can be embedded in bracelets for a classy, everyday look.
The following table summarizes key gemological properties, based on the provided sources:
| Gemstone | Hardness (Mohs) | Color Range | Key Characteristics |
|---|---|---|---|
| Aquamarine | 7.5-8 | Light blue to aqua blue | Clarity, brilliance, durability |
| Tanzanite | Not specified | Violet, blue, purple (London, Swiss, Pale Sky) | Pleochroism (displays different colors in different light) |
Symbolism and Metaphysical Beliefs
Aquamarine has long been associated with tranquility, serenity, and courage. Its connection to the sea reinforces its symbolism of safe passage and emotional clarity. The stone is also linked to youth and good fortune.
Tanzanite, while newer to the world of gemstone lore, is believed to evoke a sense of tranquility. Its captivating blue hues are mesmerizing to many, and its association with royalty and luxury adds to its appeal.
Jewelry Styles and Market Value
Both aquamarine and tanzanite are popular choices for a variety of jewelry styles. Aquamarine rings are available in solitaire, halo, side stone, and toi et moi designs. Vintage aquamarine rings often feature intricate metal carvings and settings, showcasing larger aquamarine stones. Aquamarine and diamond rings combine the cool-toned gemstones for a sophisticated elegance. Emerald cut aquamarine rings emphasize the gemstone’s color and transparency.
Tanzanite is showcased in a wide range of designs, including solitaire pendants, three-stone pendants, halo designs, and earrings. It is often paired with diamonds to enhance its brilliance. Jewelry designs range from simple studs for casual wear to bold neckpieces for special occasions.
Sources indicate that both gemstones are available at varying price points, depending on factors such as color, clarity, cut, and carat weight.
Care and Cleaning
Aquamarine’s hardness of 7.5-8 makes it relatively durable and suitable for daily wear. However, like all gemstones, it should be handled with care. Cleaning can be done with warm, soapy water and a soft brush.
Specific cleaning instructions for Tanzanite are not provided in the sources. However, given its relative softness compared to diamond, gentle cleaning with warm, soapy water and a soft brush is recommended.
Conclusion
Aquamarine and Tanzanite, while distinct in their origins and specific properties, both represent the captivating beauty and enduring appeal of blue gemstones. Aquamarine, with its ancient history and connection to the sea, offers a sense of tranquility and protection. Tanzanite, a more recent discovery, captivates with its unique color-changing abilities and vibrant hues. Both stones are cherished as birthstones and prized for their elegance in fine jewelry, offering a spectrum of blue brilliance for those born in March and December, respectively.