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Sand Gauge

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SKU: 77325
$41.50
Geotechnical Gauge is a water-resistant 5x8in (127x203mm) plastic card on a lanyard and has a wealth of information for classification of soils.
SKU: 77326
$41.50
Sand Gauge Nine granule patches are firmly attached to the handy 3.5x2.5in (89x64mm) water-resistant plastic card to assist in defining roundness and size of particles.
SKU: 77332
$16.95
Pocket-sized folder enables the field geologist to quickly and accurately identify grain size and shape, grain sorting, roundness, and sphericity of a sample.