The Munsell Soil Color Chart is the field and laboratory standard for classifying soil color. This revised edition features the same colors available in previous books plus additional color charts. Included are a 10Y and 5GY soil chart for glauconite soils, a 5R soil chart for Australia and Southeast Asia, and a 7.5R soil chart for tropical and semi-tropical soils. A Munsell high value, low chroma “white” page shows half steps from 8.5 to 9.5 in value with chromas of 1 and 2 for N, 7.5YR, 10YR, and 2.5Y. Use this page to describe carbonate, silica, gypsum, and soluble salt precipitates and evaporites common to arid and semi-arid environments as well as very light-colored parent materials such as diatomaceous earth and volcanic ash. The light gray pages decrease sun glare. The color chips are recessed into each water-resistant page to allow dirt and debris to be wiped off easily with less effect on the color chips. 2009 Revised Edition. Soil Color Chart Size: 6″ x 8″.