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.

Large Rubellite Brazilian Tourmaline Cabochon Set Necklace in 18k Gold

Designer: Claudia Berman

Tags

Shipping Date

Shipping Date

More in this Collection

Elegant Vintage Inspired 18K Rose Gold Oval Sapphire Engagement Ring Custom

Lireille

Natural Emerald Radiant Cut 0.55 Notable Gems® Emerald #592650

Lireille

22k Gold Bezel Set Solitaire Ring with Radiant Cut Natural Emerald

Lireille

18K Yellow Gold 4-Prong Vintage Style Accent Engagement Ring Custom

Lireille

Vario Clasp Black Tahitian Pearl

Marcel Roelofs

Flat Anchor Bracelet

Marcel Roelofs

14K White Gold 3 MM Flat Shape Light Comfort Fit Band Custom

Lireille

14K Gold 3 mm Flat Shape Light Comfort Fit Band

Lireille

Vario Clasp Freshwater Pendant Element with Two Connectors

Marcel Roelofs

Summer Meadow

Valerie Corvin

Crack in the Wall

Valerie Corvin

Swaying in the Wind

Valerie Corvin

That's Entertainment

Valerie Corvin

Triple Dip

Valerie Corvin

Uncomplicated

Valerie Corvin

Warm Heart

Valerie Corvin

Wild Weather

Valerie Corvin

Spring Green

Valerie Corvin

Something Is Happening Somewhere

Valerie Corvin

On High

Valerie Corvin

Let's Go

Valerie Corvin

Fog Lifting

Valerie Corvin

Can't Start A Fire Without A Spark

Valerie Corvin

Breaking Out Into Quiet Whispers

Valerie Corvin

Can I Help You RD?

Valerie Corvin

Blue Wave

Valerie Corvin

Blue Glen

Valerie Corvin

14K Gold Solitaire Oval Lab-Grown Emerald Engagement Ring

Lireille

14K White Gold 1 CT Round Lab-Grown Diamond and Blue Sapphire Floral Engagement Ring

Lireille

14K White Gold Lab-Grown Blue Sapphire Floral Wedding Band

Lireille

14k Gold 1.45 x 7.5 MM Hinged Huggie Hoop Earrings

Lireille

Support for groundbreaking carbon removal technologies.

Lireille

Sterling Silver 8.6 MM Antiqued Elongated Fancy Open Link Chain

Lireille

Wide Marquise Shape Link Long Necklace

Kelim Jewelry

Constellation of Aquarius Sapphires Band in 10k gold, Blue and Green Sapphires

Ioulia Efimova

Gold Moon Diamond Pendant

Lireille

KMr138 Black PVD and Stainless Steel Ring

Konzuk