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 Deep Green Cabochon Tourmaline Earrings

Designer: Claudia Berman

Tags

Shipping Date

Shipping Date

More in this Collection

gold and silver wrap earrings- sterling silver and 18ct gold

Shimara Carlow

Maple Seed Drop Earrings

Kelim Jewelry

Yellow Brass Center Ring Wrapped in Sterling Silver

Lori Swartz

18k Gold Oxidized Acorn Cup Wrap Stud Earrings

Shimara Carlow

14k Bumble Bee Post Earrings

Lireille

14k Gold and Oxidized Steel Wrap Ring

Peg Fetter

Curved Oval Leaf Earrings

Kelim Jewelry

Medium Honesty Studs of sterling silver and 18k gold

Shimara Carlow

Silver Wrap Brooch

Shimara Carlow

18k Gold and Silver Open Wrap Diamond Ring

Shimara Carlow

18k Gold and Sterling Silver Wrap Ring 8mm wide

Shimara Carlow

3 silver leaf earrings

Shimara Carlow

Bee Mine Multi Open Hexagon Necklace

Kelim Jewelry

18k Gold XXS Silver Acorn Cup Diamond Stud Earrings

Shimara Carlow

Silver Branch and Leaf Necklace

Kelim Jewelry

14K Polished and Textured Large Textured Gingko Leaf Dangle Earrings

Lireille

Apostolos Wrap Ring with 18k Gold Stripes

Apostolos Jewelry

"Split Leaf" Wire Earrings

Kelim Jewelry

14K White Gold Floral Diamond Contour Band

Lireille

Hot Pink Earring Volcan

Analya Cespedes

3 silver leaf pendant

Shimara Carlow

Three Twisted Leaf Shaped Earrings

Kelim Jewelry

14K Gold Genuine Diamond Double Leaf 18" Necklace

Lireille

Terra Leaf Jade Gold Diamond Necklace

Jenny Reeves

18k Gold Honesty Stud Earrings

Shimara Carlow

Honesty Earrings Sterling Silver with 18k Gold Bead Detail

Shimara Carlow

8mm Silver Wrap Ring

Shimara Carlow

Oxidized Silver and 18K Gold Wrap Pendant

Shimara Carlow

Oxidised gold and silver wrap ring

Shimara Carlow

Oxidised Wrap Ring

Shimara Carlow

18k Gold Champagne Diamond Open Wrap Ring

Shimara Carlow

Silver and 18kt Gold Leaf Diamond Post Earrings

Shimara Carlow

Floating Flowers Earrings

Kelim Jewelry

Edelweiss Drop Earrings

Kelim Jewelry

Green Triangle Hoops

Ben Cooke-Akaiwa

bell gum nut earrings- sterling silver and 18ct gold

Shimara Carlow

Sterling Silver Honeycomb Charm with Bronze Bee

Lireille