出典:Wiktionary
出典:『Wiktionary』 (2015/06/02 04:24 UTC 版)
aluminium silicate (複数形 aluminium silicates)
出典:Wikipedia
出典:『Wikipedia』 (2011/02/05 09:00 UTC 版)
Aluminium silicate (or aluminum silicate) has the chemical formula Al2(SiO3)3. It has a density of 2.8 to 2.9 g/cm³, a vitreous lustre, a refractive index of 1.56, a Mohs hardness of 4.5-7.5 (depending upon structure), and can have orthorhombic crystallography. It is insoluble and used as a refractory in glassmaking.