Vicenza earth is a buff white or tan-colored natural mineral with a subtle, warm hue and low opacity. Use it is a useful glazing color to impart warmth to cooler tones. It also provides a delicate cloudiness that can help to soften focus and articulate a sense of space. Use Vicenza earth with heavy pigments to prevent separation and to give colors a short consistency.
Origin and History
Vicenza earth was identified in medieval Italian porcelain. The Medici produced a soft-paste porcelain, which has a different composition and is fired at lower temperatures than hard-paste porcelain. The clay used, from the Italian city of Vicenza, contains some kaolin, an essential ingredient in genuine Chinese porcelain.
Vicenza earth comes from Vicenza, Italy as a buff or tan colored kaolin.
Permanence and Compatibility
Vicenza earth is unaffected by dilute acids and alkalis. It is compatible with all pigments and in all vehicles.
Oil Absorption and Grinding
Vicenza earth absorbs 30 to 40 grams of oil per 10 grams of pigment. It readily mixes with oil and water to form a smooth paste.
Vicenza earth is not considered to be toxic, however, care should be used in handling the dry powder pigment to avoid breathing the dust. Pigment: Vicenza Earth
|Pigment Information |
|Color: ||White |
|Colour Index: ||Pigment White 19 (Colour Index 77004) |
|Chemical Name: ||Hydrated alumina silicate |
|Chemical Name: ||SiO2 Al2O3 H2O |
|ASTM Lightfastness Rating |
|Acrylic: ||Not rated |
|Oil: ||Not rated |
|Watercolor: ||Not rated |
|Specific Gravity: ||2.25 |
|Hardness: ||2.5 |
|Refractive Index: ||nα=1.53 |