Tourmaline

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This page deals with Tourmaline. Tourmaline is one of the most popular gemstones and comes in an amazing array of colors! It has been known and cherished for hundreds of years and is found all over the world, from Nigeria to North Carolina. Tourmaline is one of the birthstones for the month of October. As well as being valued as a gemstone, it is also collected as a mineral specimen as beautiful crystals and is sometimes an inclusion in other stones, most notably, quartz. Clear quartz with long thin crystals of tourmaline criss-crossing though it makes a spectacular gemstone or specimen.

Tourmaline is strongly dichroic, meaning that it appears to be different colors when viewed from different angles. Sometimes it is just slightly different shade of the same color, but sometimes the differences are quite pronounced. Gem cutters have to be careful to orient the stone properly when they cut it to show off its best color.

Toumaline Colors

A Tourmaline By Any Other Name...

Tourmaline comes in almost every imaginable color. Many of the more popular colors have names of their own. Here's a list of some of those names and what they mean:

Elbaite Tourmaline: Typical green Tourmaline. It ranges in shade from pastel to very dark green.

Rubellite: Rubellite is red Tourmaline. How red it has to be to be called a rubellite is a matter of some debate. Some people consider all shades of pink to be rubellite. Others believe that only truely red specimens should be called rubellite and that pink tourmaline should just be referred to as pink tourmaline.

Indicolite: Blue Tourmaline. Usually a very dark blue although very nice stones are sometimes a beautiful sapphire blue. Sometimes blueish green stones are also called Indicolite.

Watermelon Tourmaline: This is a bi-colored tourmaline like the one at the top of this page, that is red on one end and green on the other, Like a slice of watermelon. Sometimes it is even tri-colored, with a band of white between the red and green that really emulates watermelon! This is a very popular and very distinctive stone.

Paraiba Tourmaline: Paraiba isn't really a specific color but a variety. It is names after the Paraiba region of Brazil where it was first found. It is distinguished by its bright, neon color, usually blue or blueish-green, that is unlike anything else. It is spectacular. Originally the term applied only to the electric blue tourmaline found in Paraiba, but now is used to describe any tourmaline with a high copper content that gives it its brilliant, electic color. Paraiba tourmaline is the most valuable tourmaline, sometimes selling for thousands of dollars per caret for top grade, top color, genuine stones.

Anchorite: Colorless Tourmaline

Chrome Tourmaline: Green tourmaline from Africa, where the green color comes from traces of Chromium.

Dravite: Brown Tourmaline

Schorl: Black Tourmaline

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Top Tourmaline Links

These are some of the best sites I've found to get more information on tourmaline.

Here's some great sites for information on tourmaline as a gemstone, as well as mineral data and places to purchase them.
Tourmaline
This is some great information on tourmalines from the International Colored Gemstone Association!
Tourmalines from Palm Beach Gem
Faceted Tourmaline Gemstones for sale at discount prices as well as some tourmaline jewelry and beads.
Multicoloured Tourmalines
This is another page from ICA that deals specifically with multicolored tourmalines like "watermelon tourmaline".
Tourmaline - Wikipedia, the free encyclopedia
A very detailed and scientific discussion of tourmaline.
Tourmaline Classification page
Some real technical information on Tourmaline species.
Amethyst Galleries - TOURMALINE GROUP
Another discussion of the tourmaline group of minerals with some good pictures of rough tourmaline specimens.
Gemstones - Tourmaline
This is information from the U.S. Geological Survey
Tourmaline in the Gem Gallery
Name: Tourmaline Chem: (Li,Na,Ca)(Fe,Mg,Mn,Al)3(Al,Fe)6(BO3)3Si6O18(OH,F)4 AluminumBoroSilicate (wide variety of substitutions) Crystal: Hexagonal (long prismatic, striated, with a rounded
triangular cross section) Color: black(schorl), brown(dravite), blue(indicolite),
pink(rubellite),
Tourmaline information
American Gem Trade Association. The Natural Colored Gemstone and Cultured Pearl Source of Information and Ideas
[Ganoksin] Tourmaline: Rubellite and Indicolite
Tourmaline has the widest variety of possibilities of any gemstone; it comes in all colors and even two or more colors may be visible in one stone. The chemistry of tourmaline is extraordinarily complex, but nevertheless it is a fairly abundant gem material....
Paraiba Tourmaline
Gemsite Gem Library
Paraiba Tourmaline Reports from the AGTA GTC
There has been a lot of controversy lately about exactly what tourmaline can be called Paraiba Tourmaline. This page explains it very well and features some fantastic pictures.

New Flickr Pictures

Tourmaline Pictures

Here are some photos of some of my tourmaline gemstones!
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from PalmBeachGems

This is some of the gemstones and related items that I have up for auction on eBay. If you don't see any tourmalines here, check my eBay Store, palmbeachgems
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palmbeachgems

I have had a lifelong interest in rocks, minerals and gemstones. I make wire wrap, beaded and other types of jewelry. I also have been selling gemston... more »

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