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.
Streak plates in a black colour made form porcelain, tough and ideal for performing streak tests, to asses minerals or mineral content of a rock sample, each plate is 45 x 45 mm in size and has a fine texture surface. Excellent for field geologists and earth science students.
An off white coloured streak plate made form porcelain, they are used by field geologists and students as a means of performing streak tests on minerals. This test simply involves one, scratching the surface of the tile with a particular rock or mineral, the coloured streak left behind then assists the user in determining the mineral, or minerals within a rock sample.