Examples of silica in the following topics:
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- Glass is a non-crystalline solid material made of silica, while quartz is a crystalline silicate mineral with piezoelectric properties.
- The most familiar type of glass, used for centuries in windows and drinking vessels, is soda-lime glass, composed of about 75% silica (SiO2) with the addition of sodium oxide (Na2O) from soda ash, lime (CaO), and several minor additives.
- Chalcedony is a cryptocrystalline form of silica consisting of fine intergrowths of quartz and its monoclinic polymorph, moganite.
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- A second subtype of Rhizaria, the radiolarians, exhibit intricate exteriors of glassy silica with radial or bilateral symmetry .
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- Hexactinellids, or "glassy" sponges, are characterized by a rigid framework of spicules made of silica.
- The sponge sediments have high levels of silica and organic carbon.
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- Hexactinellid sponges have sturdy lattice-like internal skeletons made up of fused spicules of silica; they tend to be more-or-less cup-shaped.
- Many sponges have internal skeletons of spongin and/or spicules of calcium carbonate or silica.
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- This water will deposit minerals, typically silica, into empty spaces, producing a fossil .
- These fossils from the Road Canyon Formation (Middle Permian of Texas) have been silicified (replaced with silica), which is a form of permineralization.
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- In the mineral zeolite, silica and oxygen atoms are bonded layers of sheets.
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- In other protists, glassy silica-based shells or pellicles of interlocking protein strips encase the cells.
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- Pulmonary fibrosis is caused by many different types of inhalation exposures, such as silica dust.
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- Silica collects in the epidermal cells, contributing to the stiffness of horsetail plants.
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- Generally the artist makes a mold out of refractory, sand, or plaster and silica which can be filled with either clear glass or colored or patterned glass, depending on the techniques and effects desired.