turmaline

turmaline
Tourmaline Tour"ma*line, n. [F. tourmaline, cf. It. turmalina, tormalina, NL. turmalina, turmalinus; all fr. tournamal, a name given to this stone in Ceylon.] (Min.) A mineral occurring usually in three-sided or six-sided prisms terminated by rhombohedral or scalenohedral planes. Black tourmaline (schorl) is the most common variety, but there are also other varieties, as the blue (indicolite), red (rubellite), also green, brown, and white. The red and green varieties when transparent are valued as jewels. [Written also {turmaline} .] [1913 Webster]

Note: Crystals of tourmaline when heated exhibit electric polarity (see {Pyroelectric}, n.). Tourmaline is also used in the form of a polariscope called tourmaline tongs. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Turmaline — Tur ma*line, n. (Min.) See {Tourmaline}. [1913 Webster] …   The Collaborative International Dictionary of English

  • turmaline — /toor meuh lin; leen , terr /, n. tourmaline. * * * …   Universalium

  • turmaline — n. Tourmaline …   New dictionary of synonyms

  • turmaline — /ˈtɜməlin/ (say termuhleen) noun → tourmaline …  

  • turmaline — variant of tourmaline * * * /toor meuh lin; leen , terr /, n. tourmaline. * * * turmagant, turmalin(e, turmat see termagant, tourmaline, turnip …   Useful english dictionary

  • Turmalin — Tur|ma|lin 〈m. 1〉 gesteinsbildendes Mineral, Edelstein, chem. ein borhaltiges Silicat [<frz., engl. tourmaline <singales. turmale, turamali] * * * Tur|ma|lin [gleichbed. frz. tourmaline (singhalesisch turamal[l]i = rötlicher oder… …   Universal-Lexikon

  • Achroit — Turmalingruppe verschiedene Turmalin Minerale aus Madagaskar Chemische Formel XY3Z6[(BO3)3T6O18(OH,O)3(OH,F,O)] X=(Ca,Na,K,[]), Y=(Mg,Li,Al,Mn,Fe2+,Fe3+,V,Cr,Ti,Cu,[]), Z=(Al,Mg,Cr,V,Fe3+,Ti), T=(Si,Al,B,Be) …   Deutsch Wikipedia

  • Buergerit — Turmalingruppe verschiedene Turmalin Minerale aus Madagaskar Chemische Formel XY3Z6[(BO3)3T6O18(OH,O)3(OH,F,O)] X=(Ca,Na,K,[]), Y=(Mg,Li,Al,Mn,Fe2+,Fe3+,V,Cr,Ti,Cu,[]), Z=(Al,Mg,Cr,V,Fe3+,Ti), T=(Si,Al,B,Be) …   Deutsch Wikipedia

  • Chromdravit — Turmalingruppe verschiedene Turmalin Minerale aus Madagaskar Chemische Formel XY3Z6[(BO3)3T6O18(OH,O)3(OH,F,O)] X=(Ca,Na,K,[]), Y=(Mg,Li,Al,Mn,Fe2+,Fe3+,V,Cr,Ti,Cu,[]), Z=(Al,Mg,Cr,V,Fe3+,Ti), T=(Si,Al,B,Be) …   Deutsch Wikipedia

  • Coronite — Turmalingruppe verschiedene Turmalin Minerale aus Madagaskar Chemische Formel XY3Z6[(BO3)3T6O18(OH,O)3(OH,F,O)] X=(Ca,Na,K,[]), Y=(Mg,Li,Al,Mn,Fe2+,Fe3+,V,Cr,Ti,Cu,[]), Z=(Al,Mg,Cr,V,Fe3+,Ti), T=(Si,Al,B,Be) …   Deutsch Wikipedia

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