Kolinsky sable-hair brush
The hair is obtained from the tail of the kolinsky (Mustela sibirica), a species of weasel rather than an actual sable; The finest brushes are made from the male hair only, but most brushes have a mix of about 60/40 male-to-female hair. Kolinsky bristles tend to be pale red in colour with darker tips. The weasel is not an animal that is raised well in captivity, and is generally isolated to the geographical region of Siberia. Due to this difficulty in harvesting the hair, and the fact that other natural and artificial bristles are not comparable in quality, these bristles are extremely valuable and consequently expensive. Those who use the kolinsky sable brush claim it has superior strength, slenderness, and resilience when compared with other sable brushes.
The finest Kolinsky Sables are usually used in Watercolour brushes. Lesser grades of Kolinsky Sables are also frequently used in oil painting, and sometimes for glazing in acrylics.
Due to their exceptional ability to be finely shaped, kolinsky sable brushes are highly prized in the dental ceramics industry, where they are used to hand-tint the ceramic appliances for a realistic appearance. 
- "Star Porcelain Brushes". Dental Ventures. Retrieved December 27, 2010.
- Jennings, Simon (2006). The new artist's manual: the complete guide to painting and drawing materials and techniques. Chronicle Books. p. 96. ISBN 0-8118-5124-9.
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