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Pigment: Pyrolusite (Urals, Russia) (Pyrolusite 100g)

SKU: NAP-480-2010
The minimum order amount for this product line is $30.00
Pigment: Pyrolusite (Urals, Russia) (Pyrolusite 100g)
Discount table
Qty Price
 1   US$ 19.24 
 2   US$ 19.12 
 3   US$ 19.06 
 4-5   US$ 19.01 
 6-7   US$ 18.94 
 8-11   US$ 18.89 
 12+   US$ 18.83 
Price: US$ 19.24
US$ 19.24

Product description

Pyrolusite is the most common manganese mineral and is an important ore. Its color is variable from iron-black to bluish black to steel gray. Our pigment is from a dark, brownish black ore from the Ural Mountains, Russia.

Origin and History
Manganese oxide minerals have been used for thousands of years by the ancients for making pigments and to clarify glass. Named in 1827 from the Greek for "fire" and "to wash," because it was used to remove brown and green tints in the making of glass. In 1844, pyrolusite was used by LeClaire in Paris to develop a better zinc white for oil. Zinc oxide was ground with poppy oil that was made fast drying by boiling it with pyrolusite.

Pyrolusite is an oxidation product of weathered manganese minerals and also forms from stagnant shallow marine and freshwater bog and swamp deposits. The mineral forms tetragonal crystals that are opaque. Usually found as matte-black powdery to fibrous crusts, sometimes in botryoidal aggregates or columnar, more rarely as druses of microscopic prismatic crystals. Minerals such as rhodochrosite, rhodonite and hausmannite are often replaced by pyrolusite. Notable occurrences include deposits in Germany; iron mines in Minnesota and Michigan and at Lake County, New Mexico, USA. Pyrolusite is mined in many countries around the world with the most productive countries being Georgia and Ukraine of the former USSR, India, China, South Africa, Brazil, Australia and Gabon. Our pigment is from a dark, brownish black ore from the Ural Mountains, Russia.

Permanence and Compatibility
Pyrolusite is a manganese compound and is considered to be among the most permanent pigments in the artist's palette. It can be safely used in all techniques and combines well with all pigments. It is used effectively in all aqueous mediums, such as egg tempera, watercolor and casein.

Oil Absorption and Grinding
Shungite like its cousins, carbon blacks, absorbs a moderate amount of oil during dispersion, speeds up the drying of oil films, and forms a good flexible film. The oil absorption ratio is 60 parts by weight of pigment to 100 parts by weight of linseed oil. If the measurement were grams, umber would require 100 grams (by weight) of linseed oil to grind 60 grams (by weight) of pigment to form a stiff paste.

Pyrolusite is moderately toxic and care should be used in handling the dry powder pigment so as not to inhale the dust.

Pigment: Pyrolusite (Urals, Russia)

Pigment Information
Color: Brown Black
Colour Index: Not Listed
Chemical Name: Manganese Oxide
Chemical Name: MnO2
ASTM Lightfastness Rating
Acrylic: I
Oil: I
Watercolor: I
Density: 4.4–5.1
Hardness: 4.0–5.0
Refractive Index:

Natural Pigments

Natural Pigments is a limited liability company based in Willits, California. We manufacture and distribute rare and hard-to-find materials for fine artists and decorators. We specialize in supplying artists' materials that were used in historical painting since pre-historic times up to and including the nineteenth century.

We constantly search for materials and products of the finest quality so that we can bring them direct to you from the source. To do so, we travel the world to find materials specifically for use by professional artists and decorators. We obtain minerals from mines in Afghanistan, Chile, Russia, Ukraine and Uzbekistan, to name a few places, processing these into natural pigments. We purchase resins, gums and plants from India, Kenya and Malaysia to make natural varnishes and painting mediums.

Our mission is to provide the largest variety of natural pigments, paints and other professional artists' supplies, enabling us to bring you a selection that makes shopping for rare and hard-to-find art materials easy. Our objective is to promote the education and use of these materials among artists by providing detailed information for their employment in encaustic, fresco, oil, watercolor and tempera painting.
All Natural Pigments products

Product weight: 0.25 lbs

This product is shipped from our warehouse in Gretna, NE, USA.
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
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