Umber

（重定向自Raw Umber）

Umber is a natural brown or reddish-brown earth pigment that contains iron oxide and manganese oxide. It 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 the color is known as burnt umber.

单词	Raw Umber
释义	Raw Umber 英语百科 Umber （重定向自Raw Umber） Umber is a natural brown or reddish-brown earth pigment that contains iron oxide and manganese oxide. It 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 the color is known as burnt umber.
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