Note 258 — ESSAYS. (continued 3)
Reading edition
Sandyx is a colour procured by calcining common ruddle and sandarach together. Sandarach is a red substance found near, and in silver mines. An island in the Red Sea produced a great deal. Sandarach is also gum from the juniper, but Pliny means the mineral.—Book xxxv. ch. 6. Virgil, however, must mean the juniper when he says, that browsing upon sandarach rendered the fleeces of the sheep red.