From the same place as Rublev's French earths, the quarries in the heart of the Luberon Massif.
Deep, deep black, strong tinting strength, neutral, this is going to have a natural affinity with earths, and important not forget that this is mined from deep within a mountain, which is in itself pretty special.
Also no greasiness with this one, which I am sure you will appreciate if you have ever used a generic carbon black sliding all over the place. Stick with the earth pigments there is a reason we have being making paint this way for millennia.
|Single Pigment:||Natural Black Iron Oxide|
|Colour Index:||Pigment Black 11 (77499)|
|Chemical Name:||Natural Iron Oxide from magnetite ore|