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SchminckePaints

Schmincke Horadam Naturals Watercolor - Red Bolus, 15 ml Tube

Naturals Watercolor

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  • Blick Art Materials
    $18.84 USDShop
    Recorded Oct 21, 2026, 1:44 PM UTC

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Product details
Size
15 ml
Blick SKU
86335-3632
About this product range
  • Superior quality colors made from naturally derived sources
  • 100% vegan formula
  • Rare, single-origin plant and mineral pigments
  • Less processed for subtle variations of color and texture

Schmincke Horadam Naturals Watercolors are a distinctive range of vegan, naturally derived colors featuring pigments sourced from plants, earth, and rocks. In addition to classic colors, such as Yellow Ochre, the range includes colors such as Turmeric, Indigo, and Madder—rare in modern professional palettes, but known to artists and craftspeople worldwide for centuries. While natural colors may lack the lightfastness of modern synthetics, they have a unique and subtle beauty that is irreplaceable and unique to find in such an artist-friendly format.

Additionally, Naturals includes mineral colors—but unlike the earth pigments typically found in artists’ colors, which rely on highly processed and standardized earth pigments, Schmincke has selected less-processed, single-origin pigments for the Naturals line. These colors retain more of their original character, offering subtle variations of texture inside each tube. Unlike traditional watercolors, Horadam Naturals are free from animal products. The binder, composed of simple and time-tested gum arabic, ensures effortless dilution and reactivation with water after drying.

Pigment information

General reference notes about pigments can describe other media (such as oil). They do not verify this product’s exact formulation or behavior.

Natural Light Red Iron Oxide

Pigment code
PR102
Type
inorganic, natural
Chemical name
iron oxide
Chemical formula
Fe2O2
Properties
Natural Light Red Iron Oxide is a brick red pigment with a bright, scarlet top tone. Mineral sources vary considerably in both hue and transparency. It is generally opaque and has great tinting strength and hiding power, but more transparent versions are available. It creates salmon pinks when mixed with white. Natural Light Red Iron Oxide is often replaced by Mars colors or bright red oxides, which are cleaner and more powerful.
Permanence
Natural Light Red Iron Oxide has excellent permanence and lightfastness.
Toxicity
Natural Light Red Iron Oxide has no significant hazards.
History
Natural red iron oxide comes from the mineral ore hematite, called bloodstone by the ancient Greeks from the word hema, meaning blood. It is one of the oldest pigments, has been used by every major civilization, and was an important mineral for medieval alchemists. It was not widely used in artists' materials until the 17th century and was not produced in large quantities until the 18th century.
Description
Antwerp Red, Bole, Light Red, Colcothar, English Red, Morelle Salt, Persian Red, Persian Gulf Oxide, Poliment, Pompeian Red, Prussian Brown, Prussian Red, Red Iron Oxide, Sinopia, Spanish Red, Turkey Red.

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