Geological Sand Gauge

SKU: 8205
  • $25.95
    Unit price per 

W.F. McCullough Sand Gauge

Precisely sieved silt and sand grains are permanently mounted on a convenient pocket-sized card with lanyard. Ideal for accurate and consistent sample descriptions. Grains are sorted from very coarse sand to silt. Has geologic time scale and carbonate classification. Size: 3 x 4 x 3/16"