search
  • 登录
    注册
  • 只提供英语客户支持

    免费通话 - 仅限美国和加拿大:
    1-800-464-1640

    国际:
    +66-39303404

  • Change Language
  • USD

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.

  • 首次发布于: July-16-2010
  • 最后更新于:: October-24-2019
  • © 2005-2021 GemSelect.com版权所有。
    未经GemSelect.com(SETT Company Ltd.)的书面同意,严格禁止复制(文字或图形)。.
More Shapes
人气宝石
  • 蓝宝石
  • 祖母绿
  • 红宝石
  • 海蓝宝
  • 锆石
  • 蛋白石
  • 黄玉
  • 碧玺
  • 石榴石
  • 紫水晶
  • 黄水晶
  • 坦桑黝帘石
全部宝石 (143)
C D G H N P Q S
  • Cat's Eye Opal
  • Druzy Amethyst
  • Grandidierite
  • Hyalite Opal
  • Nuummite
  • Pyrite
  • Quartz With Marcasite
  • Scolecite
  • Spectrolite
  • 中长石拉长
  • 卢比莱碧玺
  • 变色宝石
  • 变色水铝石
  • 变色石榴石
  • 变色萤石
  • 变色蓝宝石
  • 坦桑黝帘石
  • 堇青石
  • 天河石
  • 孔雀石
  • 尖晶石
  • 巧克力蛋白石
  • 帝王黄玉
  • 异极矿晶簇
  • 彩虹月长石
  • 彩虹黄铁矿
  • 彼得石
  • 拉利玛
  • 拉长石
  • 摩西西
  • 斑彩石
  • 斑晶蛋白石
  • 斜硅镁石
  • 方柱石
  • 方解石
  • 方钠石
  • 日光石
  • 星光宝石
  • 星光日长石
  • 星光月长石
  • 星光柠檬石英
  • 星光石榴石
  • 星光粉晶
  • 星光红宝石
  • 星光蓝宝石
  • 星光透辉石
  • 月光石猫眼
  • 月长石
  • 杉石
  • 枝状玛瑙
  • 查罗石
  • 榍石
  • 橄榄石
  • 沙弗莱石榴石
  • 海蓝宝
  • 火玛瑙
  • 火蛋白石
  • 烟晶
  • 猫眼宝石
  • 猫眼方柱石
  • 猫眼海蓝宝石
  • 猫眼磷灰石
  • 玉宝石
  • 玉髓
  • 玛瑙
  • 玛瑙晶洞
  • 珊瑚
  • 珊瑚化石
  • 珍珠
  • 珍珠母
  • 电镀黄玉
  • 石榴石
  • 石英
  • 石英猫眼
  • 砂金石
  • 砾背蛋白石
  • 硅孔雀石
  • 硅硼钙石
  • 硅线石
  • 硅线石猫眼
  • 碧玉
  • 碧玺
  • 磷灰石
  • 磷鋁石
  • 祖母绿
  • 符山石
  • 紅寶黝簾石
  • 紫水晶
  • 紫锂辉石
  • 紫黄晶
  • 红宝石
  • 红柱石
  • 红榴石
  • 红玉髓
  • 红纹石
  • 绿松石
  • 绿玉髓
  • 绿龙晶
  • 缟玛瑙
  • 翠绿锂辉石
  • 翡翠
  • 芙蓉石
  • 草莓石英
  • 菱锌矿
  • 萤石
  • 葡萄石
  • 蓝宝石
  • 蓝晶石
  • 蓝铜矿晶
  • 虎眼石
  • 虎眼石斑晶
  • 蛇纹石
  • 蛋白石
  • 蛋白石二层石
  • 血石
  • 赤铁矿
  • 金发晶
  • 金绿柱石
  • 金绿玉
  • 钙铁榴石
  • 钙铝榴石
  • 钙铝榴石
  • 钠柱晶石
  • 钻石
  • 铁铝榴石
  • 铬云母红宝石
  • 铬透辉石
  • 铯绿柱石
  • 锆石
  • 锰铝榴石
  • 镁铝榴石
  • 闪锌矿
  • 阳起石猫眼
  • 雪花黑曜石
  • 青金石
  • 顽辉石
  • 马拉亚石榴石
  • 马里石榴石
  • 鹰眼石
  • 黄水晶
  • 黄玉
  • 黑曜石
  • 黑蛋白石
Main Categories
  • 新品
  • 批量宝石
  • 标准化宝石
  • Gemstones By Piece
  • 高档宝石
  • 匹配的成对宝石
  • 凸面宝石
  • Drilled Gems, Briolettes and Beads
  • 诞生石
  • 宝石雕刻
  • 别致的宝石
  • 星光宝石
  • 未经加热处理的蓝宝石
只提供英语客户支持

免费通话 - 仅限美国和加拿大:
1-800-464-1640

国际:
+66-39303404

省钱
其他商品不收取额外的运费!
8.90美元全球发货

Update Translation
 
Current Value
New Value
GemSelect Gemstones
X 关闭窗口
Colored Gemstones
X 关闭窗口
Colored Gemstones
X 关闭窗口
Colored Gemstones
大小和重量

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

Size Comparison Chart