View source for Clay earth pigment

'''Clay earth pigments''' are naturally occurring [[Mineral|minerals]], principally [[iron oxides]], that have been used since prehistoric times as [[Pigment|pigments]].

== Description ==

The primary types are: 

* [[Ochre]]
* [[Sienna]]
* [[Umber]]

Earth pigments are known for their fast drying time in [[oil painting]], relative inexpensiveness, and [[lightfastness]].

Cave paintings done in sienna still survive today.

== See also ==

* [[Ochre]]
* [[Pigment]]

==  External links ==

* [https://en.wikipedia.org/wiki/Clay_earth_pigment Clay earth pigment] @ Wikipedia