Tourmaline Definition

to͝ormə-lĭn, -lēn
noun
A very hard, piezoelectric, rhombohedral mineral, (Na,Ca)(Mg,Fe,Al,Li)3Al6(BO3)3(Si6O18)(OH)4, of various colors, used as a gem and in making pressure gauges.
Webster's New World
A complex crystalline silicate containing aluminum, boron, and other elements, used in electronic instrumentation and, especially in its green, clear, and blue varieties, as a gemstone.
American Heritage

A complex black or dark coloured borosilicate mineral.

Wiktionary

A transparent gemstone cut from it.

Wiktionary

Other Word Forms of Tourmaline

Noun

Singular:
tourmaline
Plural:
tourmalines

Origin of Tourmaline

  • Either directly from Sinhalese tóramalli 'carnelian', or via a cognate: German Turmalin, Portuguese tormalina, or French tourmaline

    From Wiktionary

  • French from Sinhalese toramalli carnelian

    From American Heritage Dictionary of the English Language, 5th Edition

Tourmaline Sentence Examples

  • Other valuable stones, the topaz, chrysolite, aquamarine amethyst and tourmaline are found.

  • Zircon, tourmaline, garnet and other precious stones of little commercial value are found throughout Australia.

  • Flattened crystals of garnet, films of quartz, and needles of tourmaline are not uncommon.

  • Tourmaline or rubellite is found on the borders of the Ruby Mines district and in the Shan State of Mong Long.

  • In other cases, especially near mineral veins, slates are filled with black needles of tourmaline or are bleached to pale grey and white colours, or are silicified and impregnated with mineral ores.

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Find Similar Words

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Words Starting With

TTOTOU

Words Ending With

ENEINE

Unscrambles

tourmaline

Words Starting With T and Ending With E

Starts With T & Ends With EStarts With TO & Ends With EStarts With T & Ends With NE

Word Length

10 Letter Words10 Letter Words Starting With T10 Letter Words Ending With E