What is an Opal?
An opal is a unique and mesmerizing gemstone known for its stunning play-of-color, which is a captivating display of iridescent hues that change as the gemstone is moved and observed from different angles.
The play-of-color is caused by the diffraction and interference of light passing through microscopic silica spheres that are arranged in a regular pattern within the opal's structure.
Opals belong to the mineraloid group, which means they lack a well-defined crystal structure like minerals but still exhibit some of their properties. The captivating colors found in opals are a result of the way light interacts with these silica spheres and the voids between them.
Opals come in various colors and patterns, ranging from milky white and pale pastels to vibrant reds, oranges, blues, and greens. The play-of-color can create a wide range of shapes and patterns within the gemstone, making each opal unique.
Types of Opals
1. Precious Opal: This type of opal exhibits a distinct play-of-color and is highly valued for its iridescence.
2. Common Opal (Potch): Common opal, also known as potch, lacks the play-of-color and is often translucent to opaque. Fire opal is a common opal known for its warm hues of red, orange, and yellow.
3. Boulder Opal: Boulder opal forms within ironstone or sandstone matrix, creating a striking contrast between the opal and its host rock.
4. Black Opal: Black opal, found mainly in Australia, displays a dark background that enhances the brilliance of its play-of-color.
Opals have a rich history and have been cherished by various cultures for centuries. They have been associated with qualities such as inspiration, creativity, and emotional healing. Opal is the birthstone for October and is often used in jewelry, including rings, necklaces, earrings, and more.
Due to their unique composition, opals require proper care to avoid damage. They are relatively softer gemstones compared to others, so they should be protected from harsh chemicals, extreme temperatures, and physical impact. Proper care ensures that the captivating play-of-color and beauty of opals remain intact over time.
MEXICAN OPALS, SIMPLY THE BEST
Mexican opals are a type of opal gemstone that is primarily found in Mexico.
Opals are unique gemstones known for their vibrant play-of-color, which is a captivating display of iridescent hues that change as the gemstone is moved and observed from different angles.
Mexican opals are often distinguished by their fiery and vivid play-of-color, which can include shades of red, orange, yellow, green, blue, and purple. This play-of-color is a result of microscopic silica spheres arranged in a regular pattern within the opal's structure, which diffract light to create the stunning array of colors.
There are two main types of Mexican opals: precious opal and common opal. Precious opal displays the characteristic play-of-color, while common opal, also known as "fire opal," is transparent to translucent with a warm body color ranging from yellow to orange to deep red. The most famous variety of Mexican opal is the "Mexican fire opal," which is valued for its intense orange to red hues.
Mexican opals are often cut into cabochon shapes, which showcase their play-of-color and unique internal patterns. These opals are used in various types of jewelry, including rings, pendants, earrings, and necklaces. The opals are typically set in precious metals like gold or silver to complement their beauty.
It's important to note that opals are relatively softer gemstones compared to others, which means they require proper care to avoid scratching or damage. They should be protected from harsh chemicals, extreme temperatures, and physical impact.
In addition to their aesthetic appeal, opals have also been associated with various metaphysical and spiritual beliefs. They are often considered symbols of creativity, inspiration, and emotional healing.
Overall, Mexican opals are highly sought after for their stunning play-of-color and vibrant hues, making them a popular choice among gemstone enthusiasts and jewelry designers.