The Brunton Grain Size Card is used for the visual classification of sediments by size and shape. This essential field geology reference tool can easily fit into a vest pocket, wallet or field pouch, so it can be referenced whenever and wherever needed.
Features
- Waterproof, lightweight and durable card
- Weather resistant
- Transparent card stock with both negative and positive sides for easier reading and for comparing grain size in the field
Card data includes:
- 10 grain size classifications including phi scale
- Grain shape reference
- Millimetre ruler
Specifications:
| Description |
Brunton Grain Size Card |
| Dimensions |
63.5 x 93.3 x 2mm (2.5 x 3.675 x 0.06”) |
| Weight |
6g (0.2oz) |
