A tungsten carbide scriber for geophysical testing of minerals, performing scratch tests in the field according to the Mohs scale of hardness. Tungsten carbide is at 9 on the mohs scale of hardness and so this scriber is more suitable for harder minerals. Knurling along the body gives users extra grip and the built in magnet will allow for magnetic testing of iron bearing material. The tip is reversible for safe storage and a pocket clip allows for placing in your shirt pocket or along a notebook.

• Length: 150mm (6 inches)
• Tungsten carbide pointed tip
• Permanent magnet is built in
• Knurling for grip
• Reversible tip