Pigment powders derived from the ochre sands of Roussillon in the south of France.
Use by mixing into gum arabic, acrylic wax, gel medium, textile medium, gouache, clay, melted wax or even nail varnish.
Can be applied to fabrics, paper, Lutradur, Tyvek, glass, wood, ceramics etc.
These pigments can also be used to make your own watercolour, oil or acrylic paint.
A useful page of notes is included.