October Birthstones: Opal and Tourmaline
October birthstones image courtesy of https://www.gia.edu/birthstones/october-birthstones
October is a special month for those who celebrate their birthdays, not only because it marks the heart of autumn but also because of the beautiful and meaningful birthstones associated with it—opal and tourmaline. Each stone carries its own unique history, color, and significance, making them two of the most captivating gems in the birthstone spectrum. Both opal and tourmaline have a long-standing association with creativity, protection, and healing, and their stunning appearances make them popular choices for jewelry.
Opal: The Gem of Colors
A breathtaking sunset seems to dance on the surface of this 1.72 carat (ct) opal. Photo: Dr. Edward J. Gübelin/GIA
Opal, often referred to as the "queen of gems," is celebrated for its dazzling play of colors, known as "opalescence." This iridescent quality gives the stone an almost magical appearance, with flashes of color ranging from blue and green to red, yellow, and purple. The colors shift and change depending on the light, angle, and movement, making each opal unique.
Opals are primarily composed of silica and water, with the latter being trapped within the stone’s structure. This combination causes the mesmerizing rainbow effect that opals are known for. Because opals contain water (typically between 3% and 21%), they are softer and more delicate than many other gemstones, making them prone to cracking or drying out if not properly cared for. Most opals are mined in Australia, which produces about 95% of the world’s opal supply.
Symbolism and Meaning of Opal
Two pieces of boulder opal that is found only in Queensland. Photo: Robert Weldon/GIA
Historically, opals have been regarded as symbols of hope, purity, and truth. In ancient Rome, opals were considered one of the most valuable gemstones, believed to bring good fortune and protection to their wearer. The ancient Greeks thought opals provided the gift of prophecy and protection from disease. In the Middle Ages, opals were associated with the power to make their wearer invisible, which added to their mystical allure.
Sapphires and diamonds encircle a 1.92 carat (ct) black opal in this stunning 18K yellow gold and black rhodium ring. Courtesy: Omi Privé
Opal is also said to inspire creativity and enhance artistic expression. For those born in October, wearing opal is thought to bring emotional stability and encourage authenticity. It is often linked to love, passion, and spontaneity due to its vibrant color patterns.
Tourmaline: The Stone of Many Colors
Suite of multi-color tourmaline. Photo: Robert Weldon/GIA
Tourmaline, the second birthstone of October, is another highly diverse gemstone. It comes in nearly every color of the rainbow, from pink and red to green, blue, and even black. In fact, its name is derived from the Sinhalese word "turmali," which means "mixed stones," reflecting its wide range of hues.
What makes tourmaline particularly unique is that it can sometimes show multiple colors in one stone. A well-known example of this is watermelon tourmaline, which displays pink, white, and green zones, resembling the rind, flesh, and core of a watermelon. Tourmaline crystals can also be bi-colored or multi-colored, making them a favorite for gemstone collectors and jewelry designers alike.
Symbolism and Meaning of Tourmaline
15.16 ct pink tourmaline and diamond ring set in platinum and white gold. Courtesy: Omi Privé
Tourmaline is prized for its protective and healing properties. It has long been considered a stone that can ward off negative energy, promote self-confidence, and balance the mind and spirit. Different colors of tourmaline are believed to have different effects: pink tourmaline is linked to love and compassion, green tourmaline to strength and vitality, and black tourmaline to protection and grounding.
Ancient civilizations in Africa, India, and the Mediterranean used tourmaline as a talisman for protection and strength. It is also believed to help with detoxification and balancing the body's energy centers, particularly the heart chakra.
Choosing the Right Birthstone
Whether you are drawn to the fiery flashes of opal or the bold, varied hues of tourmaline, both October birthstones offer unique beauty and significance. For October-born individuals, these stones symbolize not only the vibrant and changing energy of the fall season but also a deeper connection to creativity, protection, and emotional balance.