achroite

achroite
/ak"roh uyt'/, n.
the colorless or white variety of tourmaline, often used as a gem.
[ < Gk áchro(os) colorless (a- A-6 + -chroos colored) + -ITE1]

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Universalium. 2010.

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  • achroite — ˈakrə|wīt noun ( s) Etymology: German achroit, from achro + it ite 1. : a colorless variety of tourmaline 2. : a gem cut from achroite * * * /ak roh uyt /, n. the colorless or white variety of tourmaline, often used as a gem. [ < Gk áchro( …   Useful english dictionary

  • achroite — achroitas statusas T sritis chemija apibrėžtis Bespalvis turmalinas, mineralas. formulė NaFe₃Al₆[(OH)₄|(BO₃)₃|Si₆O₁₈] atitikmenys: angl. achroite rus. ахроит …   Chemijos terminų aiškinamasis žodynas

  • achroite — ach·ro·ite …   English syllables

  • Tourmaline — Schorl Tourmaline General Category Cyclosilicate Chemical formula (Ca,K,Na,[ …   Wikipedia

  • Important gemstones — ▪ Table Important gemstones mineral gem name colour Mohs hardness* specific gravity* beryl aquamarine sky blue to greenish blue 7½–8 2.68–2.71 emerald green 2.68–2.74 goshenite colourless; greenish yellow, yellow green, brownish same as… …   Universalium

  • Elbaite — Infobox mineral name = Elbaite category = Silicate mineral |thumb imagesize = caption = formula = Na(LiAl)3Al6Si6O18(BO3)3(OH)4 molweight = color = Green, red to pink, blue, orange, yellow, colorless, multicolored habit = Prismatic; striated… …   Wikipedia

  • Elbaïte — Catégorie IX : silicates[1] Elbaïte « melon d eau » G …   Wikipédia en Français

  • tourmaline — tourmalinic /toor meuh lin ik/, adj. /toor meuh lin, leen /, n. any of a group of silicate minerals of complex composition, containing boron, aluminum, etc., usually black but having various colored, transparent varieties used as gems. Also,… …   Universalium

  • achroitas — statusas T sritis chemija apibrėžtis Bespalvis turmalinas, mineralas. formulė NaFe₃Al₆[(OH)₄|(BO₃)₃|Si₆O₁₈] atitikmenys: angl. achroite rus. ахроит …   Chemijos terminų aiškinamasis žodynas

  • ахроит — achroitas statusas T sritis chemija apibrėžtis Bespalvis turmalinas, mineralas. formulė NaFe₃Al₆[(OH)₄|(BO₃)₃|Si₆O₁₈] atitikmenys: angl. achroite rus. ахроит …   Chemijos terminų aiškinamasis žodynas

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