Sand Gauge

HM-513 Sand Gauge has nine granule patches which are firmly attached to the handy 3.5x2.5in (89x64mm) water-resistant plastic card to assist in defining roundness and size of particles from 2mm very coarse sand to 1/16mm silt. A checklist is included to assist in making field notes and defining bed thickness. The flipside of the chart has tables of geologic age and carbonate classification information. The gauge has a 0–50mm scale on one edge and an attached lanyard.

Features:

• Contains granule patches and classification tables
• Water-resistant

Included Items:

• Sand Gauge

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