For magnetic sampling, in geology.

Ideal for field work performed by professionals in geology and mining. It incorporates sixteen pages of geological information, including: grain size scales, soil classification, geological map symbols, rock classification diagrams, geological...

These are the loose sheets that professionals use. Special 6-groove round punches fit Rite in No. 200 (43455), No. 9200 (49440), and No. 9200T (49441) Rain Ring Binders. 4-5 / 8˝ x 7˝ sheet size. Pack of 100 sheets. Tough, durable and weather...

There are many granulometric scales in use, but the Udden-Wentworth scale (commonly known as the Wentworth scale) is the most widely used in geology.

Get the same rite in the rain quality with replacement 4 "x 6 1/2" blades. Get the same rite in the rain quality with replacement 4 "x 6 1/2" blades. Fits No. 204 Ring Binder. Sold in packs of 100 sheets.

While a pencil works great with rite in the rain products, sometimes a pen is needed. Don't worry about running out of ink, refills will accommodate all models of rite in the rain pens.

Get the same rite in the rain quality with replacement 4-3 / 4 "x 7-1 / 2" blades. Fits No. 200 and No. 210 ring binders. Sold in packs of 100 sheets. size - 4-3 / 4 '' x 7-1 / 2 ''

Tungsten carbide-tipped pencil for estimating the relative hardness of minerals; it also consists of a permanent magnet to establish magnetic minerals.