The CGS Sand Grain Sizing Folder is a valuable tool for geologists and field technicians to quickly and accurately identify the size, shape, sorting, roundness, and sphericity of sand grains in the field.
This pocket-sized folder contains visual aids and reference materials to help users classify sand samples according to the Wentworth Grade Scale.
Key Features:
- Six Sand Grain Sizes: Includes actual samples of silt, very fine sand, fine sand, medium sand, coarse sand, and very coarse sand.
- Shape Examples: Features four actual grain samples illustrating angular, subangular, subrounded, and rounded shapes.
- Sorting Examples: Provides printed examples of well-sorted and poorly-sorted grain samples in fine, medium, and coarse ranges.
- Sphericity and Roundness Chart: Includes a chart for measuring the sphericity and roundness of grains.
- Measurement Limits: Indicates the measurement limits for granules, pebbles, cobbles, and boulders.
- Pocket-Sized Design: Convenient for field use and easy to carry.
