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Tourmaline Names: Gemstone vs. Mineral Varieties

The tourmaline group refers to a number of related gemstone varieties and mineral species. The most commonly used names in the gemstone business, like Paraiba tourmaline (copper-bearing neon blue-green), rubellite tourmaline (purplish to red tourmaline) and indicolite (blue tourmaline), are actually tourmaline gemstone trade names, rather than their corresponding gemological mineral or species names.

Paraiba, Indicolite and Rubellite Tourmaline
Paraiba, Indicolite and Rubellite Tourmaline

The gemological mineral names used to identify and distinguish the several different tourmaline varieties are classified according to their chemical composition, rather than their color. This is the same convention used in distinguishing the many different members of the garnet group, where the term andradite, for example, is used to pick out the calcium iron silicates of the garnet family.

Elbaite Tourmaline Liddicoatite Tourmaline Schorl Tourmaline
Elbaite Tourmaline Liddicoatite Tourmaline Schorl Tourmaline


Most of the tourmaline that is sold as gemstones is a variety of elbaite, a lithium rich variety of tourmaline that occurs in transparent and translucent crystals in a wide range of colors. Elbaite is named after the Island of Elba in Italy, known as the site of Napoleon's exile after his forced abdication in 1814. Gemstone varieties of elbaite, include green verdite, pink tourmalines, red tourmaline, blue tourmalines and more.

Another variety of tourmaline that is commonly found is schorl, an iron rich type of tourmaline that is opaque and black. Schorl is widely available in the form of black tourmaline - it accounts for more than 90% of the tourmaline in nature - and because of its common occurance, it is rather inexpensive. It is extremely popular as a jewelry gemstone because it takes a good polish and large stones can be had for very affordable prices.

Buergerite Tourmaline Uvite Tourmaline Dravite Tourmaline
Buergerite Tourmaline Uvite Tourmaline Dravite Tourmaline

The less common tourmaline varieties include buergerite, dravite, liddicoatite and uvite. Buergerite, named after the MIT mineralogist Martin Buerger, is an iron-rich tourmaline variety that occurs in bronze, brown and black hues. Dravite is magnesium tourmaline that is dark-yellow to brownish-black in color. It is named after the Drava River area of what is now Slovenia. The most well-known gemstone variety of dravite is chrome tourmaline, or sometimes referred to as chrome dravite.

Liddicoatite is a type of calcium tourmaline, named in honor of Richard Liddicoat, the GIA gemologist who invented the diamond grading system. It is found in a range of colors, including blue, brown, green, pink and red.

Uvite is magnesium/iron-rich tourmaline and was named after a province in Sri Lanka. It is usually dark-green to black in color. One of the unusual features of uvite is that it tends to form stubby crystals rather than long prismatic crystals like most other tourmaline varieties.

  • First Published: July-16-2010
  • Last Updated: May-23-2018
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    Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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