The ochry earths are prepared for use by grinding under edge millstones, and elutriation.
The ochry variety or red-iron-ochre is distinguished from the solid hematite by the brightness of its colour.
Their heads have always black about them; but the rest is brindled, buff, ochry, or white.
type of clayey soil (much used in pigments), late 14c., from Old French ocre (c.1300) and directly from Late Latin ocra, from Latin ochra, from Greek ochra, from ochros "pale yellow," of unknown origin. As a color name, "brownish-yellow," it is attested from mid-15c. Related: Ochreous.