Question

what is the difference between raw and burnt umber​

Answer 1

Umber is a natural brown or reddish-brown earth pigment that contains iron oxide and manganese oxide. Umber is darker than the other similar earth pigments, ochre and sienna. In its natural form, it is called raw umber. When heated (calcinated), the color becomes more intense, and then becomes known as burnt umber.

Answer 2

Umber is a natural brown or reddish-brown earth pigment that contains iron oxide and manganese oxide. Umber is darker than the other similar earth pigments, ochre and sienna. In its natural form, it is called raw umber. When heated (calcinated), the color becomes more intense, and then becomes known as burnt umber.