Raw Sienna gamblin-grounds In Field's Practical Treatise of

In Field's Practical Treatise of 1795

Purple Ocher is manufactured from iron oxide earth deposits containing augite porphyry from the Lori province of Armenia

Chemical Description: Indanthrone

Rublev Colours Red Sartorius Earth is a semi- transparent deep orange red with warm undertones

Pigment: Concentrated cadmium zinc sulfide

Raw Sienna gamblin-grounds In Field's Practical Treatise ofNatural Iron Oxide is the basis for this single pigment color, named after the region in Italy where it was first mined. Raw Sienna retains more of its yellowish color because is created prior to the heating process that creates "burnt" sienna. (Series 1) Pigment Classification: Inorganic Color Index Name: PY43 Color Index Number: 77492 Chemical Description: Natural Hydrated Iron Oxide Opacity Transparency: Semi Transparent Lightfastness Rating: 1