pure+silica
21Donald Keck — Donald B. Keck Born 2 January 1941(1941 01 02) Lansing, Michigan Nationality United States …
22Fiber-optic communication — An optical fiber junction box. The yellow cables are single mode fibers; the orange and blue cables are multi mode fibers: 50/125 µm OM2 and 50/125 µm OM3 fibers respectively. Fiber optic communication is a method of transmitting information from …
23Sodium oxide — Sodium oxide …
24Cherthala —   taluk   …
25telecommunications media — Introduction equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation Every… …
26Corium (nuclear reactor) — LFCM redirects here. For the airport, see List of airports by ICAO code: L. The Three Mile Island reactor 2 after the meltdown. Corium, also called fuel containing material (FCM) or lava like fuel containing material (LFCM), is a lava like molten …
27lechatelierite — noun colorless glass made of almost pure silica • Syn: ↑quartz glass, ↑quartz, ↑vitreous silica, ↑crystal • Derivationally related forms: ↑crystallize (for: ↑crystal), ↑ …
28Sapphire — For other uses, see Sapphire (disambiguation). Sapphire The 423 carat (85 g) blue Logan sapphire General Category Oxide mineral …
29lechatelierite — n. A naturally occurring colorless glass made of almost pure silica, and found in fulgurites, which are produced by lightning striking sand. Syn: quartz glass, vitreous silica, crystal. [WordNet 1.5 +PJC] …
30Mineraloid — A mineraloid is a mineral like substance that does not demonstrate crystallinity. Mineraloids possess chemical compositions that vary beyond the generally accepted ranges for specific minerals. For example, obsidian is an amorphous glass and not… …
