| silica |
Silica is a very common mineral composed of silicon and oxygen (SiO 2 ). Silicates make up about 95% of the Earth's crust. silicates Silicates are minerals composed of silicon and oxygen with one or more other elements. Silicates make up about 95% of the Earth's crust.
출처: www.enchantedlearning.com/geology/rocks/glossary/i...
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| silica |
A hard, glassy mineral. Quartz and opal are two forms of silica. Since much sand is made of quartz, silica is very common in sand. Some marine organisms use silica to build their shells.
출처: www.reefed.edu.au/glossary/s.html
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| silica |
Silicon dioxide.
출처: www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBook...
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| silicate |
One of several rock-forming minerals that contain silicon, oxygen, and usually one or more other common elements.
출처: college.hmco.com/geology/resources/geologylink/glo...
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| silica |
Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
출처: eduserv.hscer.washington.edu/dermUW/lang/term2.htm...
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