a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia
3
ocher
any of various earths containing silica and alumina and ferric oxide; used as a pigment
2
cinnabar
a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury
