Toch, Maximilian, 1864-1946, Toch, Maximilian, 1864-1946. Chemistry and technology of mixed paints · New York : D. Van Nostrand · leaf 68
IGMENTS earth colors as pigments for paint. One of these was a natural hematite, and he observed that the Indians used this for painting their faces. The name is also supposed to have had its origin in the fact that "Persian Gulf Ore,',' which was found in the Orient, was exported to England under… … The native Indian red No. 17. American Venetian Red — will run 00 per cent Fe203, Photomicrograph X2SO, showing fine grains of calcium sulphate. the American 88 per cent, and the Persian 75 per cent, the balance in every case being sihca. The Indian red of commerce, however, is an artificial…
Paint · Pigments
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