en

quartz

1

Terminological databases

EKI terminibaas Esterm

ID 718460 Last modified 30.12.2004
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Domain Chemistry
  • crystalline silica, SiO2, occurring either in prisms capped by rhomnohedra (low-temperature quartz, stable up to 573°C) or in heaxagonal bipyramidal crystals (high-temperature quartz, stable above 573°C). Widely distributed in rocks of all kinds; igneous, metamorphic and sedimentary; usually colourless and transparent (rock crystal), but often coloured by minute quantities of impurities as in citrine, cairngorm etc; also finely crystalline in the several forms of chalcedony, jasper etc.
kvarts
quartz

Arheoloogia terminibaas

ID 474375 Last modified 13.09.2019
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Domain materjalid
  • ränioksiidist koosnev suure kõvadusega kivimite koostismineraal, ka poolvääriskivi

Materjalitehnika terminibaas

ID 675087 Last modified 27.07.2024
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Domain ceramic technologycasting
  • ränidioksiidi (SiO2) üks polümorfne modifikatsioon mis on laialt levinud kivimites ja aherainena paljude maakide koosseisus; esineb looduslikult mitmetes vormides sh ahhaat, kaltsedon, ränikivi, opaal jne (vt ränidioksiid)
  • crystalline silicon dioxide (SiO2) widely distributed in rocks of all kinds; naturally occuring in many forms and varieties, such as agate, chalcedony, chert, flint, opal etc (see: silicon dioxide)
kvarts
quartz
кварц

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