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Reference Material

The Sand Grain Size Chart chart allows classification of rock and sand grains based on size and provides a point of reference.

The Munsell Rock & Soil Colour Charts are the standard for classifying all soil and rock colours. Determine colour, hue and lightness with this quick reference chart that is also washable with water when working out in the field. It allows the geologist to classify based on a variety of properties such as size and shape, grain sorting, roundness and sphericity of a sample