For magnetic sampling, in geology.

Ian McCluskey, director of “Les Voyageurs Sans Trace” captured 31 days of scenic beauty in Wyoming and Arizona. As important as his camera, Ian had brought with him a Rite in the Rain Pen and Journal. Constantly wet and covered in mud, he...

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

The Industrial Planner in aluminum is exclusive and resistant, designed and manufactured by Synergy Supplies . With leather case for rulers and 10 compartments for pens.

Cordura fabric case to transport notebook, pencils, and an acid dropper. Improved design with an easy-open closure and two waist clips on the reverse, no strap needed. Best case or bag to store Rite In The Rain Special to store your pens,...

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.

Protractor W-44 Ruler Metric Scale 1: 250

Mylar waterproof paper sheets for drawing and geological mapping.

Protractor W-43 Ruler Metric Scales 1: 500 AND 1: 1000