Discover the world of artistic possibilities with our Extenders Set, a comprehensive collection of 16 natural minerals carefully curated to introduce you to the fascinating realm of extender pigments and their role in grounds and painting mediums. This exceptional set is an ideal gift for art students and enthusiasts, offering a unique opportunity to explore the functions and behaviors of various fillers in painting mediums.

With a total value of $20 more if purchased separately, this set offers an unbeatable value for artists seeking to elevate their creative process. Each of the 4 vol oz. jars contains a unique natural mineral, expertly sourced from around the world to provide an unparalleled artistic journey. From the renowned Gesso Oro per Indoratori, quarried and processed in Colle Val d'Elsa, Italy, to the finest whiting from limestone deposits in the Lucerne Valley, California, every pigment in this set has been carefully selected to provide a rich tapestry of textures, colors, and effects.

The set includes talc from Montana, ideal for adding body and texture to paints, as well as clear glass powder made from leaded crystal glass, which adds luminosity and textural interest to any artwork. Aluminum trihydrate, a filler, extender, and bodying agent, is also included, along with kaolinite, a clay mineral commonly known as China clay or kaolin. Perlite, a volcanic glass, adds bulk and texture, while muscovite mica provides a wet ground mineral perfect for applications requiring resistance to moisture, heat, light, or chemicals.

The set also features alabaster, a natural crystalline mineral of hydrated calcium sulfate, recommended in Cennino Cennini's iconic treatise on painting, Il libro dell'arte. Marble dust in medium, fine, and extra-fine grades offers a range of textural possibilities, while barium sulfate, a high-quality, natural white ore, provides a unique combination of fine grind, high specific gravity, and chemical inertness.

Rounding out the set are silica, a high-purity, natural crystalline silica from Oklahoma, and extra-fine nepheline syenite, a micronized functional filler and extender perfect for enhancing paint performance. Finally, extra-fine wollastonite, a calcium metasilicate mineral, offers a unique combination of low oil absorption and high pH, making it an ideal extender pigment for a range of artistic applications.

With the Extenders Set, artists can unlock new levels of creativity and experimentation, exploring the infinite possibilities of grounds and painting mediums. Whether you're a seasoned artist or just beginning your creative journey, this exceptional set from Rublev Colours is the perfect companion for anyone seeking to push the boundaries of art.