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Silicon dioxide, SiO

A salt of silicic acid.

Combined or impregnated with silicon or silica; as, silicated hydrogen; silicated rocks. Silicated soap, a hard soap containing silicate of soda.

Silicification.

Royal; kingly; also, basilican.

building of the earlier centuries of Christianity, the plan of which was taken from the basilica of the Romans. The name is still applied to some churches by way of honorary distinction.

Of, relating to, or resembling, a basilica; basilical. There can be no doubt that the first churches in Constantinople were in the basilican form. Milman.

A salt of metasilicic acid; -- so called because the ratio of the oxygen of the silica to the oxygen of the base is as two to one. The bisilicates include many of the most common and important minerals.

A double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.

A double fluoride of silicon and some other (usually basic) element or radical, regarded as a salt of fluosilicic acid; -- called also silicofluoride.

A salt of hydrofluosilic acid; a silicofluoride. See Silicofluoride.

A salt of metasilicic acid.

A silicate formed with the lowest proportion of silicic acid, or having but one atom of silicon in the molecule.

A basic silicate.

A salt of orthosilicic acid, H4SiO4; -- so called because the ratio of the oxygen atoms united to the basic metals and silicon respectively is 1:1; for example, Mg2SiO4 or 2MgO.SiO2.

Containing a high percentage of silica; -- opposed to basic. an acidic solution.

A mineral of the feldspar family, triclinic in crystallization, and in composition a silicate of alumina and soda. It is a common constituent of granite and of various igneous rocks. See Feldspar.

A kind of plastic cement, or artificial stone, consisting chiefly of magnesia and silica; -- called also albolite.

A silicate containing a large amount of cerium. It is usually black in color, opaque, and is related to epidote in form and composition.

columnar structure. The color varies from white to gray, green, brown, and black. It is a silicate of magnesium and calcium, with usually aluminium and iron. Some common varieties are tremolite, actinolite, asbestus, edenite, hornblende (the last name being also used as a general term for the whole species). Amphibole…