Ultramarine ash
Esquema
Jerarquía
<materiales por función> > colorante > pigmento > <pigmentos por color> > pigmento azul > pigmento azul inorgánico
Descripción
The end-product of the refining process that is used to produce natural ultramarine blue pigment from lapis lazuli, ultramarine ash remaining after higher grades of ultramarine blue have been extracted. Ultramarine ash contains small blue particles mixed with a large proportion of colorless materials, such as calcite and silicates; it has been used for glazing.
URI original del concepto
Otros términos
- ash, ultramarine [en]