Antica Green Earth Dispersion - Natural Glauconite Pigment
Antica Green Earth Dispersion is a natural glauconite pigment derived from the mineral glauconite, a greenish mineral of hydrated iron potassium silicate. This pigment is a grayish warm green mineral that looks like tiny flakes of mica, or small lumps of clay. The color of glauconite varies considerably from pale green, bright green, bluish-green, olive-green, and black-green, depending upon its constituent elements. Our Antica Green Earth Dispersion is sourced from basaltic tufa deposits near the ancient city of Prun, not far from Verona, in northern Italy, and is known there as 'terra di Prun.'
Traditional Painting Mediums
Rublev Colours Aqueous Dispersions are pigments dispersed in water ready to be mixed with water-based mediums. These dispersions are especially made for use with traditional painting mediums, such as egg tempera, casein tempera, fresco, watercolors, and distemper (glue tempera). They are also ideally suited for use with gesso to make toned grounds for drawing and painting.
Natural Ingredients
Pigment dispersions from Rublev Colours contain only naturally-derived ingredients, in addition to pigment and water, making them ideally suited for traditional mediums. Unlike other pigment dispersions that are typically made for acrylic medium, Rublev Colours Aqueous Dispersions do not contain coalescent solvents, artificial dispersing resins, and other additives that interfere with natural mediums.
Easy to Prepare
Aqueous Dispersions make preparing traditional mediums easy; you do not have to hassle with powders, grinding pigments in medium, and calculating binder ratios to make water-based paint. They make adding the right amount of paint binder, such as egg yolk, a no-brainer because the right amount of water is already contained in the dispersion, simply add egg yolk.
Highly Lightfast and Non-Toxic
Earth pigments, and green earths in particular, are often described as the most permanent of colors. Earths are not affected by sunlight or by atmospheric conditions. They do not react with solvents, but according to Feller, green earth is partially soluble in acids and alkalis. The pigment is considered non-toxic, but care should always be exercised when handling the dry powder pigment so as not to inhale the dust.