silica
91Hydrated silica — is a form of silicon dioxide, which has a variable amount of water in the formula. It is also known as silicic acid, a term usually used for its form dissolved in water. It is found in nature, as opal, which has been mined as a gemstone for… …
92Hard Clad Silica — (HCS) (auch PCF – Polymer Cladded Fiber) bezeichnet einen Lichtwellenleiter mit einem optischen Kern aus Quarzglas (Durchmesser 200 µm) und einem optischen Mantel aus einem speziellen Kunststoff (Durchmesser 230 µm). Kern und Mantel bilden… …
93vitreous silica — noun colorless glass made of almost pure silica • Syn: ↑quartz glass, ↑quartz, ↑lechatelierite, ↑crystal • Derivationally related forms: ↑crystallize (for: ↑crystal), ↑ …
94Lithogenic silica — (LSi) comes from the Greek words lithos , which means rock , and genesis , which means coming from . LSi is silica that originates from terrestrial sources of rock and soil, i.e. from silicate minerals and crystals.In the marine silicon cycle,… …
95fused silica — kvarcinis stiklas statusas T sritis chemija apibrėžtis Iš gryno kvarcinio smėlio arba susmulkinto kalnų krištolo išlydytas stiklas. atitikmenys: angl. fused glass; fused silica; quartz glass; silica glass; vitreous silica rus. кварцевое стекло …
96vitreous silica — kvarcinis stiklas statusas T sritis chemija apibrėžtis Iš gryno kvarcinio smėlio arba susmulkinto kalnų krištolo išlydytas stiklas. atitikmenys: angl. fused glass; fused silica; quartz glass; silica glass; vitreous silica rus. кварцевое стекло …
97fused silica — n. SILICA GLASS * * * …
98vitreous silica — n. SILICA GLASS * * * …
99Some physical properties of silica minerals — ▪ Table Some physical properties of silica minerals phase symmetry specific gravity hardness ● quartz ● (alpha quartz) ● hexagonal; ● trigonal ● trapezohedral 2.651 7 ● high quartz ● (beta quartz) ● hexagonal; ● hexagonal ●… …
100vitreous silica — n a chemically stable and refractory glass made from silica alone see QUARTZ GLASS …
