Quickly and accurately identify grain size and shape, grain sorting, roundness, and sphericity of samples. This pocket-sized folder consists of a sphericity/roundness measuring chart; printed examples of well-sorted and poorly sorted grain samples in the fine, medium, and coarse ranges; four actual grain samples illustrating angular, subangular, subrounded, and rounded shapes; six grain size samples; silt, very fine sand, fine sand, medium sand, coarse sand, and very coarse sand. Measurement limits for granules, pebbles, cobbles, and boulders indicated. Don’t leave for the field without this handy tool!

Published: 2/01/2018

Product Category: Specialty Items