Hebrew kadkod, from kadad, "to sparkle". The "windows" being of this gem () implies transparency. Gesenius thinks the ruby or carbuncle is meant. It was imported from Syria to Tyre (). Hebrew Sheba (from Sheba whence it came to Tyre), ; , is rightly translated "agate," a semi-transparent uncrystallized quartz, mainly silica, with concentric layers of various tints; the second stone of the third row on the high priest's breast-plate. The English term is drawn from that of the Greeks, who found agate in the river Acheres, in Sicily, and hence named it.