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  • Cassel Earth Oil Paint Cassel Earth Oil Paint
  • Cassel Earth Oil Paint (50ml) Cassel Earth Oil Paint (50ml)

Cassel Earth Oil Paint

Quick Overview

A semi-opaque brown with good tinting strength, medium grained and, like most Rublev Colours Artist Oils, brushes "long" in the direction of the brush stroke. Learn more.

Product Name Price Qty

Cassel Earth Oil Paint

Cassel Earth 50ml

Cassel Earth Oil Paint

Cassel Earth 130ml

Availability: In stock


Rublev Colours Cassel Earth is imported from deposits in Germany.

Historically, Cassel earth was based on lignitic earth or earth containing as much as 60% brownish-black coal (an intermediate between peat and bituminous coal). Rublev Colours Cassel Earth is made from milled and purified umber. This particular umber chosen closely resembles the historical pigment in mass tone, opacity and tinting strength. Historical Cassel earth was a fugitive pigment (that is subject to fading in light). Rublev Artists Oils Cassel Earth, on the other hand, is lightfast.

Composition and Permanence

Cassel Earth
Color: Brown
Binder: Linseed oil
Additive(s): None
Pigment Information
Pigment: Cassel Earth
Pigment Classification: Natural inorganic
Colour Index: Pigment Brown 7
Chemical Name: Iron-manganese oxide
Chemical Formula: Fe2O3 MnO2
CAS No. 12713-03-0
Code: 905
Series: 1
Opacity: Semi-Opaque
Tinting Strength: Good
Drying Rate: Medium
ASTM Lightfastness: I
Permanence: A
Safety Information: There are no acute or known chronic health hazards associated with the anticipated use of this product (most chemicals are not fully tested for chronic toxicity). Always protect yourself against potentially unknown chronic hazards of this and other chemical products by keeping them out of your body. Do this by avoiding ingestion, excessive skin contact, and inhalation of spraying mists, sanding dusts and vapors from heating. Conforms to ASTM D-4236

For a detailed explanation of the terms in the table above, please visit Composition and Permanence.


Some separation of pigment and oil may occur in Rublev Colours Artist Oils and is a natural process when no wax or stabilizers are added to paint to prevent this from occurring.

All images of color swatches in this web site are only approximations of the actual color of the oil paint. We have taken every care to match the color in these pictures on calibrated color monitors to the actual color. However, because of the wide variance in color monitors the results you get may vary.

Color Swatch Note: The color swatch was created with a thick application (left side) of color and a tint (right side) made with equal parts of color and titanium white and applied on acrylic primed cotton canvas.

Drawdown Note: The image of the "drawdown" contains a pre-mixed paint film of 6 mil (0.006 inch) thickness applied to a standard test card for the purposes of examining color consistency, opacity and other qualities. The drawdowns show the color full strength (mass tone), on the left, and mixed in a 1:2 ratio with titanium white on the right. The bottom area of the drawdowns are scraped to show undertones.

Additional Information

SKU 820-905
Processing Time Usually ships within 24 hours.
Color Black
Resin Type No
Vendor Rublev Colours
Swatch No
Videos No
More Videos No
Tutorials No

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