Alabaster 1kg

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Alabaster is a natural crystalline mineral mined near Florence, Italy. Softer than chalk, it makes a soft white gesso that is easier to polish for gilding and painting grounds. 1 kg (2.2 lbs)
Ground alabaster (also called satin spar) is a natural crystalline mineral of hydrated calcium sulfate mined near Volterra (between Florence and Sienna), Italy. Softer than chalk (3 Mohs scale of mineral hardness), its hardness of 1.5 to 2 makes a soft white gesso that is easier to polish to a smooth finish for gilding bases and painting grounds. Calcite or chalk, being a carbonate, effervesces on exposure to acids, whereas gypsum alabaster, when so treated, remains practically unaffected.

Recommended in Cennino Cennini's treatise on painting, Il libro dell'arte (often translated as The Craftsman's Handbook), to make "gesso sottile" for painting grounds.

Add to oil colors and mediums as a transparent filler and to give body or in tempera as a white filler.

More Information
BrandRublev Colours
VendorNatural Pigments
Processing TimeUsually ships the next business day.
Size1 kg
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Alabaster 1kg
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