Opal & Tourmaline is the Best October Birthday Gifts all time.

Opal & Tourmaline have become the staple birthstones of October. Opal and Tourmaline are both some of the most beautiful and untraditional of all gemstones. Traditionally represented as pink, the tourmaline can come in many colors of the rainbow. Even seen with 3 colors in one stone, it is known as tri-colored watermelon tourmaline. October sure has the most exciting birthone options in jewelry designs.

Opal is the product of seasonal rains that drenched dry ground in regions such as Australia’s semi-desert “outback.” The showers soaked deep into ancient underground rock, carrying dissolved silica (a compound of silicon and oxygen) downward. During dry periods, much of the water evaporated, leaving solid deposits of silica in the cracks and between the layers of underground sedimentary rock. The silica deposits formed opal.

Opal is known for its unique display of flashing rainbow colors called play-of-color. There are two broad classes of opal: precious and common. Precious Opal displays play-of-color, common opal does not. Play-of-color occurs in precious opal because it’s made up of sub-microscopic spheres stacked in a grid-like pattern—like layers of Ping-Pong balls in a box. As the lightwaves travel between the spheres, the waves diffract, or bend. As they bend, they break up into the colors of the rainbow, called spectral colors. Play-of-color is the result.

The Color of Opal you see varies with the sizes of the spheres. Spheres that are approximately 0.1 micron (one ten-millionth of a meter) in diameter produce violet. Spheres about 0.2 microns in size produce red. Sizes in between produce the remaining rainbow colors.

Although experts divide gem opals into many different categories, five of the main types are:

White or light opal: Translucent to semi translucent, with play-of-color against a white or light gray background color, called bodycolor.
Black opal: Translucent to opaque, with play-of-color against a black or other dark background.
Fire opal: Transparent to translucent, with brown, yellow, orange, or red body color. This material—which often doesn’t show play-of-color—is also known as “Mexican opal.”
Boulder opal: Translucent to opaque, with play-of-color against a light to dark background. Fragments of the surrounding rock, called matrix, become part of the finished gem.
Crystal or water opal: Transparent to semitransparent, with a clear background. This type shows exceptional play-of-color.
Opal october birthstone jewelry is one of the best idea for october birthday gift. Check opal october birthstone jewelry.

Tourmalines come in a wide variety of exciting colors. In fact, tourmaline has one of the widest color ranges of any gem species, occurring in various shades of virtually every hue. Many tourmaline color varieties have inspired their own trade names:

Rubellite is a name for pink, red, purplish red, orangy red, or brownish red tourmaline, although some in the trade argue that the term shouldn’t apply to pink tourmaline.
Indicolite is dark violetish blue, blue, or greenish blue tourmaline. Check below tourmaline jewelry set.
Paraíba is an intense violetish blue, greenish blue, or blue tourmaline from the state of Paraíba, Brazil.
Chrome tourmaline is intense green. In spite of its name, it’s colored mostly by vanadium, the same element that colors many Brazilian and African emeralds.
Parti-colored tourmaline displays more than one color. One of the most common combinations is green and pink, but many others are possible.
Watermelon tourmaline is pink in the center and green around the outside. Crystals of this material are typically cut in slices to display this special arrangement.
Tourmaline birthstone jewelry is another great idea for october birthday gift.

Genuine AAA Quality Ethiopian Opal Bead Adjustable Necklace

Designer: Anchovy

Tags

Shipping Date

Shipping Date

More in this Collection

Holding Secrets Locket

Mariella Pilato

Waves Of Pearls Choker

Mariella Pilato

Open Me Locket

Mariella Pilato

Carina Nebula Necklace

Konzuk

Memento Eternal Locket

Konzuk

Cassiopeia Sculptural Necklace

Konzuk

Unity Tandem 8 Necklace Large

Konzuk

Georg Necklace Black Concrete

Konzuk

Vario Clasp Moonstone and Pink Tourmaline 18K yellow gold

Marcel Roelofs

Apostolos Tassel Pendant

Apostolos Jewelry

Apostolos Round Radiant Pendant with Ruby

Apostolos Jewelry

Apostolos Fan-Shaped Pendant with Ruby

Apostolos Jewelry

Bronze PVD Mesh Chain 5mm

Marcel Roelofs

Vario Clasp Aquamarine, Tourmaline and Diamond Pendant

Marcel Roelofs

Marcel Roelofs Vario Ring Element Aquamarine - 18K Yellow Gold

Marcel Roelofs

Murano Glass Heart Pendant with Vario Clasps

Marcel Roelofs

Vario Y Connector Diamond Necklace

Marcel Roelofs

Vario Clasp Freshwater Pearl - Necklace

Marcel Roelofs

Labradorite Droplet Pendant

Jenny Reeves

Moonstone Droplet Pendant

Jenny Reeves

Larimar Droplet Pendant

Jenny Reeves

Aqua Ray Pendant

Jenny Reeves

Round Textured Pendant with Brown Diamond- Medium

Apostolos Jewelry

Moon Shape Diamond Pendant

Apostolos Jewelry

Sunset Pendant - Small - 5 mm Blue Moonstone

Jenny Reeves

Moondance Necklace

Lika Behar

Large Oval Pendant

Ben Cooke-Akaiwa

Large Rectangle Pendant

Ben Cooke-Akaiwa

Large Triangle Pendant

Ben Cooke-Akaiwa

Green Triangle Pendant

Ben Cooke-Akaiwa

Balanced Pendant

Ben Cooke-Akaiwa

Tongue Pendant

Ben Cooke-Akaiwa

Rust Pebble Necklace

Ben Cooke-Akaiwa

Twig Necklace with 18 kt Gold Pearl

Monica Schmid

Tiny Enamel Pendant

Kokkino

Large Enamel Silver Pendant

Kokkino

Black Gold Mountain Necklace

Olivia Shih