Zeolite Pigment

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SKU
423-21

Zeolite is a natural aluminosilicate mineral found in many locations throughout the earth. Our green Zeolite is from deposits in the Lori province of Armenia. Zeolite minerals are often located with deposits of the famous green earth mineral, celadonite, which is an abundant clay-like alteration in zeolite-bearing basalts.

Zeolite is a natural aluminosilicate mineral found in many locations throughout the earth. Our green Zeolite is from deposits in the Lori province of Armenia. Zeolite minerals are often located with deposits of the famous green earth mineral, celadonite, which is an abundant clay-like alteration in zeolite-bearing basalts.

Pigment Information
Color: Green
Pigment Classification: Natural Inorganic
Colour Index: Pigment Green 23
Chemical Name: Complex Aluminosilicate Mineral
Chemical Formula: Na2Al2Si2O8. xH2O
CAS No.: 1318-02-1
Series No.: 4
ASTM Lightfastness
Acrylic: I
Oil: I
Watercolor: I
Physical Properties
Particle Size (mean): 10 μ
Particle Size Range: <0–15 μ: 80–85%
16–29 μ: 15–20%
>30 μ: 0.1% maximum
Density: 2.2–2.5 g/cm3
Mohs Hardness: 4–5
Refractive Index: α=1.59–1.612, β=1.609–1.643, γ=1.61–1.644
Oil Absorption: 34 grams oil / 100 grams pigment
Health and Safety There are no acute or known chronic health hazards associated with the anticipated use of this product (most chemicals are not fully tested for chronic toxicity). Always protect yourself against potentially unknown chronic hazards of this and other chemical products by keeping them out of your body. Do this by avoiding ingestion, excessive skin contact, and inhalation of spraying mists, sanding dust, and vapors from heating. Conforms to ASTM D-4236.


For a detailed explanation of the terms in the table above, please visit Composition and Permanence.

Origin and History

Zeolite is a microporous, aluminosilicate mineral commonly used as commercial adsorbents and catalysts. The term zeolite was originally coined in 1756 by Swedish mineralogist Axel Fredrik Cronstedt, who observed that rapidly heating the material, believed to have been stilbite, produced large amounts of steam from water that had been absorbed by the material. Based on this, he called the material zeolite, from the Greek ζέω (zéō), meaning "to boil" and λίθος (líthos), meaning "stone". The classic reference for the field has been Breck's book Zeolite Molecular Sieves: Structure, Chemistry, And Use.

Zeolites occur naturally but are also produced industrially on a large scale. As of December 2018, 245 unique zeolite frameworks have been identified, and over 40 naturally occurring zeolite frameworks are known. Every new zeolite structure that is obtained is examined by the International Zeolite Association Structure Commission and receives a three-letter designation.

Metamorphism, especially at low pressures, is very widespread on Earth. Metamorphism is the change of minerals in pre-existing rocks. The change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. Formation of a variety of silicate minerals like celadonite, a mineral origin of green earth pigments, and particularly zeolites is frequently observed at low temperatures.

Source

Our Zeolite is from deposits in the Teghout Cu-Mo deposit (Tekhut) in the Lori Province of Armenia, located near the Shamlugh river.

Armenia

Mineral Names
Names: English: zeolite
French: zéolite
German: Zeolith
Italian: zeolite
Spanish: zeolita
Common Names: analcime, chabazite, clinoptilolite, erionite, ferrierite, heulandite, laumontite, mordenite, and phillipsite
Nomenclature:
Common Name Primary Mineral Source
Zeolite Zeolite Lori Province, Armenia

Permanence and Compatibility

Based on the zeolite mineral, this pigment has broad compatibility and permanence with all media. Iron oxide is very lightfast and stable outdoors and has excellent weatherfastness.

Oil Absorption and Grinding

The oil absorption value for Zeolite is 34. This means 34 grams or milliliters (approx.) of linseed oil is required to form a coherent paste for every 100 grams of pigment. Zeolite has a Mohs hardness of 4 to 5, which makes it somewhat abrasive. However, despite its hardness, this pigment is easy to grind into both waterborne and oil paint.

Toxicity

Zeolite is not considered a hazardous substance, however, care should be exercised when handling the pigment to avoid inhaling or ingesting the powder.

For more information on how to handle pigments safely, please visit How to Safely Handle Art Materials and Pigments.

More Information
SKU423-21
BrandRublev Colours
VendorRublev Colours
Processing TimeUsually ships the next business day.
ColorGreen
Pigment TypeInorganic, Natural

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