"gel box"

Light gray, compact, hard, opaque, microcrystalline silica mineral.

Clear, euhedral points and sections.

Pure, bright yellow, Frasch sulfur.

Cleaned, pure, bright, metallic native copper.

Massive, chlorite-rich.

Well-cemented, medium-grained orthoquartzite.

Chlorite-bearing.

Gray andesite with phenocrysts of felspar and/or hornblende.

Classic, dark; from the Columbia Plateau.

Lustrous, black 'hard coal'.

Small, rounded pebbles and tightly cemented granules.

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

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.