Earth pigments are naturally occurring minerals that have been used since prehistoric times as pigments. Among the primary types of earth pigments include...

(ōkhrós) 'pale'), iron ochre, or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. It...

commercially or artistically important inorganic pigments of natural and synthetic origin. Aluminum pigments Ultramarine violet (PV15): a synthetic or naturally...

Sienna (from Italian: terra di Siena, meaning "Earth of Siena") is an earth pigment containing iron oxide and manganese oxide. In its natural state, it...

Verdigris, found in tomb paintings in Ancient Egypt, and the Green earth pigments popular in the Middle Ages. More recent greens, such as Cobalt Green...

Green earth, also known as terre verte and Verona green, is an inorganic pigment derived from the minerals celadonite and glauconite. Its chemical formula...

Cassel earth or Cologne earth, is a deep, rich, and warm brown colour often used in painting and printmaking. Early publications on the pigment refer to...

Umber is a natural earth pigment consisting of iron oxide and manganese oxide; it has a brownish color that can vary among shades of yellow, red, and...

named after the now Turkish city Sinop) is a dark reddish-brown natural earth pigment, whose reddish colour comes from hematite, a dehydrated form of iron...

Rembrandt also began to use new brown pigment, called Cassel earth or Cologne earth. This was a natural earth color composed of over ninety percent organic...