Benzimidazolone pigments arrived in the 1960s and DPP oranges later still, adding durable modern oranges to the colourant toolkit.
They supply oranges brighter than or red oxide can manage. In mixes, small amounts warm terracottas, corals and burnt oranges without dulling them.
An orange-looking earth such as is a different material. Organic here describes chemistry, not farming or a safety claim.
These articles explain pigment and mineral families, not the sourcing or complete formulation of any Cameron Colours paint. Historical names can cover different materials. Follow the product guidance and safety data for the paint you use; do not handle or heat raw pigment powders at home.
