Azurite is a natural carbonate of copper usually described as a bright blue or sometimes as a greenish blue. Azurite varies in masstone color from deep blue to pale blue with a greenish undertone depending on such factors as the purity of the mineral and the grade (particle size) of the pigment. This fine grade (average 25 micron particle size) of azurite is a bright blue with a greenish undertone.
English: blue verditer, bice, Mountain blue French: bleu de montagne, bleu d'Allemagne German: Bergblau Italian: azzurro della magna Latin: lapis armenius, azurium citramarinum
Origin and History of Use According to some authorities, azurite has been found in paint pigment as early as the Fourth Dynasty in Egypt.
Source Azurite is a natural carbonate of copper and is found in many parts of the world in the upper oxidized portions of copper ore deposits along with malachite. Our azurite is from copper ore deposits in Dzhezkgazgan, Kazakhstan.
Permanence and Compatibility Despite azurite being a carbonate, and hence sensitive to acids, it has a good record in respect to permanence where employed in oil- and tempera media. It is darkened when exposed to sulfur fumes, especially where it is used in mural paintings. It is unaffected by light. Azurite pigment is said to turn green due to alteration to malachite. Although copper pigments tend to exert both a siccative and antioxidant effect in oil-medium, some examples have shown that azurite tends to discolor when applied in thick, coarse-textured layers.
Oil Absorption and Grinding No data has been published on the oil absorption properties of azurite. Coarsely ground azurite produces a dark blue pigment; fine grinding produces a lighter tone. We offer a fine and medium ground pigment with an intense blue hue. Azurite is most successfully employed in aqueous medium, such as tempera, because of its refraction index.
Toxicity Azurite is moderately toxic and care should be used in handling the dry powder pigment as well as the pigment dispersed in medium.
Pigment: Azurite, Fine Grind
Pigment Blue 30 (PB30)
ASTM Lightfastness Rating
Color: Green-Blue Color Index: Pigment Blue 30 (PB30) Chemical Name: Copper Carbonate Acrylic: Not rated Oil: Not rated Watercolor: Not rated Density: 3.8 Hardness: 3.5-4.0 Refractive Index: 1.758
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.
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