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Prism Pole Tripod
$159.00 $120.00
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SKU: 77326
$29.95
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
$12.00
Pocket-sized folder enables the field geologist to quickly and accurately identify grain size and shape, grain sorting, roundness, and sphericity of a sample.