Sentence Examples with the word orpiment

There are three known compounds of arsenic and sulphur, namely, realgar As2S2, orpiment As2S3, and arsenic pentasulphide As2S5.

Cinnabar, realgar, orpiment and coal form the rest of the mineral products of Kwei-chow.

Arsenic, in its well-known and beautiful forms, orpiment and realgar, is found in New South Wales and Victoria.

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A., 1884, p. 93); several copper mines in Khorasan, Samnan, Azerbaijan and Kerman; some of lead, two considerably argentiferous, in Khorasan, Tudarvar (near Samnan), Anguran, Afshar (both west of Zenjan), and Kerman; two of iron at Mesula in Gilan and Nur in Mazandaran; two of orpiment in Afshar and near Urmia; one of cobalt at Kamsar (near Kashan); one of alum in Tarom (near Kazvin); and a number of coal in the Lar district, north-east of Teheran, and at Hiv and Abyek, north-west of Teheran.