This has the golden yellow hue of a yellow ochre, it is sourced from Northern Italy. Semi-transparent and quite high in chroma and warmth, more yellow in reality than the pictured swatch, the swatch in the second image is more accurate!
It tint's are gentle, luminous, creamy yellows. This is a really good warm, earthy yellow, it paints 'long' being lean in body
This paint again demonstrates the integrity of Rublev, this is from the finest source of these pigments, not the easiest or the cheapest but the best, there is a good chance Caravaggio was grinding this very same 'earth' several hundred years ago.
Pigment - PY43
Binder - Linseed Oil
Opacity - Semi-Transparent
Drying Rate - Average