"Specimens"

Freshwater. Filamentous. Trichomes radiating from basil heterocysts. Basic culture solution.

Shipped in a form that provides the best quality specimen. Most are supplied in 16 x 125 mm tubes, 2 oz. jars, or 8 oz. jars.

Freshwater. Filamentous. True branching, dimorphic structure. Basic culture solution.

Shipped in a form that provides the best quality specimen. Most are supplied in 16 x 125 mm tubes, 2 oz. jars, or 8 oz. jars..

Freshwater. Colonial. Sheet of many cells one cell thick. Soil-water medium.

Shipped in a form that provides the best quality specimen. Most are supplied in 16 x 125 mm tubes, 2 oz. jars, or 8 oz. jars.

Cleaned, pure, bright, metallic native copper.

Brilliant, colorful display of short and long wave fluorescent minerals will seize your students’ attention. Set contains six specimens, each 1" x 1" average size, stored in a partitioned box with key sheet.

Small, rounded pebbles and tightly cemented granules.

Dark brown to black; polycrystalline zinc ore.

Black, high grade, foliated, greasy feel.

Coarse-grained plagioclase and pyroxene with some olivine.

Pure, white, earthy “China clay”.

Gray-to-brown basaltic, with over 50% vesicles.

Light gray, fine-grained, well-foliated, schistose.

Gray with line crinoid columnal fragments.

Deep blue, massive, with nepheline; key feldspathoid.

Crystals and crystal sections up to 1", Mohs’ hardness of 9.

Clear, euhedral points and sections.