…a natural pigment resembling but darker than ochre, normally dark yellowish-brown in colour (raw umber) or dark brown when roasted (burnt umber)…
…a natural pigment resembling but darker than ochre, normally dark yellowish-brown in colour (raw umber) or dark brown when roasted (burnt umber)…
…a natural pigment resembling but darker than ochre, normally dark yellowish-brown in colour (raw umber) or dark brown when roasted (burnt umber)…
