silica pigment
71zaffar — Zaffer af fer, n. [F. zafre, safre; cf. Sp. zafra, safra, It. saffera, G. zaffer; all probably of Arabic origin. Cf. {Zaphara}.] A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of… …
72Zaffer — af fer, n. [F. zafre, safre; cf. Sp. zafra, safra, It. saffera, G. zaffer; all probably of Arabic origin. Cf. {Zaphara}.] A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude… …
73zaffir — Zaffer af fer, n. [F. zafre, safre; cf. Sp. zafra, safra, It. saffera, G. zaffer; all probably of Arabic origin. Cf. {Zaphara}.] A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of… …
74zaffre — Zaffer af fer, n. [F. zafre, safre; cf. Sp. zafra, safra, It. saffera, G. zaffer; all probably of Arabic origin. Cf. {Zaphara}.] A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of… …
75zaffree — Zaffer af fer, n. [F. zafre, safre; cf. Sp. zafra, safra, It. saffera, G. zaffer; all probably of Arabic origin. Cf. {Zaphara}.] A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of… …
76yellow ocher — noun Date: 15th century 1. a mixture of limonite usually with clay and silica used as a pigment 2. a moderate orange yellow …
77Corundum — General Category Oxide mineral – Hematite group Chemical formula Alumi …
78Hydroxide — Lewis structure of the hydroxide ion showing three lone pairs on the oxygen atom …
79E number — This article is about the food additive codes. For other uses, see E number (disambiguation). E numbers are number codes for food additives that have been assessed for use within the European Union (the E prefix stands for Europe ).[1] They are… …
80Chalk — For other uses, see Chalk (disambiguation). Chalk Sedimentary Rock The Needles, situated on the Isle of Wight, are part of the extensive Southern England Chalk Formation. Composition …
