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.

Double Tourmaline Crystals Ocean Blue and Green Dangle Earrings

Designer: Claudia Berman

Tags

Shipping Date

Shipping Date

More in this Collection

Rose Cut Smoky Quartz Necklace in Gold & Silver

Claudia Berman

Raw Horizontal Crystal Pendant (M)

Olivia Shih

Raw Crystal Pendant (L)

Olivia Shih

Vario Clasp Dendrite Crystal Pendant with Diamonds

Marcel Roelofs

14K Gold Star Setting Ruby Eternity Band

Lireille

Mini Ruby Bezel and Bead Station Necklace

Lireille

Mini Hexagon Bar with Ruby Necklace

Lireille

Statement Ring with Ruby and 18k Gold Highlight

Apostolos Jewelry

Apostolos Tassel Earrings with Ruby

Apostolos Jewelry

Apostolos Round Radiant Pendant with Ruby

Apostolos Jewelry

Apostolos Fan-Shaped Pendant with Ruby

Apostolos Jewelry

Ruby and Pearl Gold-Filled Adjustable Bracelet

Anchovy

1.76 CTW Oval Red Greenland Ruby Notable Gems® #517502

Lireille

1.60 CT Oval Red Greenland Ruby Notable Gems® #517505

Lireille

Round Radiant Ruby Post Earrings

Apostolos Jewelry

Apostolos Round Ruby Organic Ring

Apostolos Jewelry

Aqua Ray Pendant

Jenny Reeves

Black Gold Crystal Earrings

Olivia Shih

14K Curb Chain Necklace with Ruby

Lireille

14K Polished Diamond and Rutilated Quartz Dangle Earrings

Lireille

14K Polished Diamond and Rutilated Quartz Pendant

Lireille

Sterling Silver Leaves with Ruby on Hooks Earrings

Lori Swartz

Talisman with Rubies Bracelet

Lori Swartz

Honey Quartz Reticulated Silver Ring

Claudia Berman

Talisman with Ruby Necklace

Lori Swartz

Short curved silver wiggly pendant with blue topaz & 18ct gold bead

Paul Finch

Oxidised Silver and 7.5 mm Rhodalite Garnet Ring

Shimara Carlow

Long Fan-Shaped Ruby Earrings

Apostolos Jewelry

Apostolos Tiny Ruby Diamond Pendant

Apostolos Jewelry

Tiny Ruby Post Earrings

Apostolos Jewelry

Four Worlds Ring

Mariella Pilato

Four Directions Ring

Mariella Pilato

Crystal Heart Ring

Mariella Pilato

Oval Iris Ring

Mariella Pilato

Internal Pyramids Quartz Earrings

Mariella Pilato

Herco 14K Gold Earrings Crystal Quartz

Lireille

14K Gold Art Deco Rhodolite Garnet and 0.03 CTW Natural Diamond Earrings

Lireille