"Gary K. Besonson"

Get the most out of your filament with these accessories.

For Curating Your Collection

Sold wood and aluminum dynamics cards used for collision experiments.

Collect Photographic Evidence like the Experts

Shiny crystal clusters and crystalline groups, this 'fools gold' is brassy and leaves a black streak.

Earthy, porous calcareous tufa.

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

Buff, coarse, crystalline “Austin Marble” with shell casts and molds.

Nearly pure, green crystalline forsterite.

Fresh Green forsterite, classic “twin sisters” dunite.

125 g masses for Vernier dynamics carts, pack of 4

Compatible with Vernier's 1st generation dynamics carts.

Heavy-duty stage ramp carts are used every day in conjunction with our stage and stage ramp units. High-quality state-of-the-art guard rail carts are safe, durable, easy to operate, and a great long-term value. Carts are perfect for heavy-use and heavy-turn settings providing years of trusted service.

Dilute quantities to any volume as needed.

Common geological materials conveniently packaged for lab, classroom, or industrial use.

This nickel coated plate uses a rubber pad to achieve air tight contact with a bell jar. It features a stopcock and center hole with safety screw plug and a rubber gasket.