Natural pigment-Goethite

Swamp Ore Description: 

Color: brown Chemical description: swamp Ore. Chemical formula: FeO (OH)

Light resistance: 8

Alkali resistance: 5

Acid resistance:5

Form: powder

Coverage: high

Used for techniques: acrylic, tempera, watercolor, gouache, fresc, ceramic, oil

The pigment was made by crushing and grinding. There may be insight uncrushed mineral in the package.

Pigments may contain harmful substances, so remember about safety rules.

Safety rules

- use eye and hand protection,

- cover the respiratory tract, do not eat,

- keep away from children,

- wash your eyes in case the pigment gets into your eyes