Bisilicate


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Bi`sil´i`cate


n.1.(Min. Chem.) 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.
References in periodicals archive ?
He states that one aspect of traditional lustre is the fact that lead bisilicate glazes would reduce the background giving a dark mysterious halo behind the brush strokes of a silver lustre.
Barnim Leadless Glaze Frit 3195 17 Frit 3124 40 Frit 3134 20 China Clay 7 Silica 12 Zinc 4 Zirconium silicate 5 Tin Oxide 8 A Caiger-Smith W/A Glaze (1060[degrees]C) Lead bisilicate 35 Calcium borate frit 38 Zinc 5 China clay 2 Flint 7 Zirconium silicate 3 Tin oxide 10 Derek Emms' Glaze (fires 1060-1080[degrees]C lustre reduction 680[degrees]C) Lead bisilicate frit 30 Soft borax frit 60 China clay 10 Tin oxide 10 Barnim suggests that with the shift to leadless glazes to conform with new North American standards, aspects of traditional lustre are lost.