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ArtistSupplySource.com » Painting & Painting Accessories » » » Natural Pigments Siderite 100 g - Color: Light Brown
 

Natural Pigments Siderite 100 g - Color: Light Brown

SKU: NAP-460-1010
The minimum order amount for this product line is $30.00
Natural Pigments Siderite 100 g - Color: Light Brown
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 1   US$ 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
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Subtotal:
US$ 19.24


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Product description

Details
Siderite is carbonate of iron, and is of a light brown color, but can also be gray, yellow, yellowish brown, greenish brown and reddish brown because of impurities or the alteration to goethite (See more about goethite).

Names
Common Names: English: siderite
French: siderit
German:
Italian: siderite
Russian: сидирит
Spanish: siderita
Alternate Names: aerosiderit, aerosiderita, aerosiderite, bemmelenit, bemmelenita, bemmelenite, chalybit, chalybita, chalybite, eisenpath, fer carbonaté, gyrit, gyrita, gyrite, iron spar, junckérit, junckérita, junckérite, pelosiderit, pelosiderita, pelosiderite, sidérose, sparry iron, spatformig jernmalm, spathic iron, spathose iron, thomaît, thomaîta, thomaîte, weißeisenerz

Origin and History
Named in 1845 from the Greek word for iron, sideros, in allusion to its composition. Siderite was first noted by Seymour (1868), tentatively accepted by Palache (1935), and confirmed by Frondel (1972). A survey of literature did not reveal any direct evidence of siderite among historical pigments. However, since siderite is closely associated with iron oxide pigments such as goethite (ochre), it may be safe to assume that it has been in use for as long as ochre pigments.

Source
An minor ore of iron, siderite generally occurs in cleavable masses, but also in rhombohedral, tabular, prismatic or scalenohedral crystals. It is of a light yellowish brown color, but can also be gray, yellow, yellowish brown, greenish brown and reddish brown because of impurities or the alteration to goethite. It forms a series with closely related minerals rhodochrosite (MnCO3) and magnesite (MgCO3). Siderite is roughly the equivalent of calcite but with iron replacing the calcium. The iron has little effect on most structural properties such as crystal form, but does affect properties such as density, color, and hardness. Siderite occurs mostly in sedimentary and hydrothermal environments, although it is also found in some igneous pegmatites (a variety of granite occurring in veins). Other minerals associated with siderite include iron sulfides, quartz, cerussite, ankerite, dolomite, goethite, cryolite, limonite, barite, pyrite and sphalerite. Siderite is rarely encountered pure in its native state, a typical analysis is 63.55% siderite (FeCO3), 6.01% zinc carbonate (ZnCO3), 4.27% manganese carbonate (MnCO3), and 23.50% calcium and magnesium carbonate ((Ca,Mg)CO3). Siderite is found in many locations of the earth associated with iron ore deposits. We obtain our siderite pigment from minerals obtained directly from its source in the Kaluzhskaia province of Russia.

Permanence and Compatibility
As an earth pigment, siderite is also among the most permanent pigments in the artist's palette. Although it is a carbonate and hence reactive to acids, it can be safely used in all painting techniques.

Oil Absorption and Grinding
Siderite absorbs a moderate amount of oil during dispersion and forms a good flexible film.

Toxicity
Siderite is not considered toxic but care should be used in handling the dry powder pigment so as not to inhale its dust.

Pigment: Siderite
Pigment: Siderite

Pigment Information
Color: Light Brown
Colour Index: Not Listed
Chemical Name: Iron(II) Carbonate
Chemical Name: FeCO3
ASTM Lightfastness Rating
Acrylic: Not Rated
Oil: Not Rated
Watercolor: Not Rated
Properties
Density: 3.9
Hardness: 3.5–4.5
Refractive Index: 1.785






Specifications:

Color: Light Brown
Color Index: Not Listed
Chemical Name: Iron(II) Carbonate, FeCO3
Acrylic: Not rated
Oil: Not rated
Watercolor: Not rated
Density: 3.9
Hardness: 3.5–4.5
Refractive Index: 1.785



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: 0.22 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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Siderite 100 g
Pigment: Siderite




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