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.

Brazilian Rose Cut Large Green Tourmaline Necklace

Designer: Claudia Berman

Out of stock

Tags

Shipping Date

Shipping Date

More in this Collection

Thea Ring

Lireille

18K Yellow Gold Double-pearl Earrings

Jahyun Rita Baek

Cultured Akoya Pearl & 1/4 CTW Natural Diamond Earring Jackets

Lireille

14K Gold Emerald Curb Link Bracelet

Lireille

Natural Diamond 14k Gold Bar Necklace

Lireille

14k White Gold Polished Teardrop Diamond Chain Slide

Lireille

14k Gold 5 MM Aquamarine and 0.06 CTW Diamond Necklace

Lireille

Double pearl earrings

Anchovy

14K Gold Star Setting Ruby Eternity Band

Lireille

14K Gold 1/4 CTW Pinpoint Set Lab-Grown Diamond Wedding Band

Lireille

14K Gold Floral Design Lab-Grown Diamond Band

Lireille

14K Two-tone Diamond Dangle Post Earrings

Lireille

14K Gold Princess-cut Natural Emerald Family Stackable Ring

Lireille

Pink Sapphire Gold Twilight Earrings

Claudia Berman

White Baroque Pearl Lariat Necklace with Tribal Beads and Pearl Tassels

Gretchen Schields

Gold Wavy Wedding Band

Ioulia Efimova

Opal Sequoia Ring in 14k gold Textured Band

Jenny Reeves

Terra Leaf Chrysoprase Gold Diamond Earrings

Jenny Reeves

Argentium Silver Patinated Curly Pod Bracelet

Julie Prunier Vecchio

Stitch Cuff Bracelet

Mariella Pilato

Camelot Band

Judith Hoff Brooks

18k Rose Gold Twig Ring

Monica Schmid

PADOVA Ring with Oblong Shape Cabochon Turquoise

Lika Behar

Eclipse Bracelet

Lika Behar

Trompe l'oeil ellipse necklace with 16" cable friction clasp

Monica Schmid

Alaria Ring - Bright

Jenny Reeves

Gold and Silver textured triple bands

Claudia Berman

18k White Gold Inlay and Silver Frame Coquille Eggshell Unisex Ring

Julie Prunier Vecchio

Diamond Solitaire Paper Clip Necklace

Lireille

14K Polished Diamond and Rutilated Quartz Dangle Earrings

Lireille

18k Gold Honesty Necklace

Shimara Carlow

Natural Cushion Cut Salt And Pepper Rose Cut Diamond Grey Color 1.06 CTW

Lireille

Bright Green Tourmaline Necklace

Claudia Berman

Nephrite Jade and Pink Tourmaline Bracelet

Mariella Pilato

Krista Necklace

Lika Behar

Fluorite Roundels and Tourmaline Squares Necklace with 3 1/2" Hand-made Silver Clasp

Monica Schmid

Rose Gold Wavy Wedding Band