Color: Opals are known for their unique play-of-color, which involves a spectrum of colors that change with the angle of observation. Common colors include white, milky blue, green, red, yellow, and orange.
Formation: Opal earrings are formed from silica gel that seeps into crevices in rocks. Over time, the gel hardens and solidifies to become opal.
Symbolism: Opals are associated with hope, innocence, and purity. They are also believed to bring good luck and are thought to have healing properties.
Varieties: There are different types of opals, including white opal, black opal, fire opal, boulder opal, and crystal opal. Black opals are considered the rarest and most valuable.
Tourmaline:
Month: November (also an alternative birthstone for October)
Color: Tourmalines come in a variety of colors, and it is often found in bicolor or multicolor crystals. Common colors include pink, green, blue, watermelon (pink and green), and black.
Formation: Tourmaline is a boron silicate mineral that crystallizes in long, slender prisms. It is often found in granite and metamorphic rocks.
Symbolism: Tourmaline is believed to promote balance and protection. Different colors are associated with various properties. For example, pink tourmaline is linked to love and compassion, while green tourmaline is associated with physical healing.
Varieties: Besides the standard varieties mentioned, there are specific names for certain color variations of tourmaline. For example, rubellite is a red to pink variety, indicolite is blue, and dravite is brown.
Caring for Opal and Tourmaline:
Both opal and tourmaline are relatively softer gemstones compared to diamonds, so care should be taken to avoid scratches.
Opals contain water and are sensitive to changes in temperature and humidity. It's best to store them away from direct sunlight and extreme conditions.
Tourmaline is generally more durable but can still be sensitive to heat and certain chemicals. It's advisable to clean them with mild soap and warm water.
Both opal and tourmaline offer a wide range of colors and variations, making them popular choices for jewelry. Their unique characteristics and vibrant hues make them prized additions to any collection.