"Gary K. benson"

Deep purple crystal clusters.

White, massive, coarse crystalline vein, Mohs’ hardness of 7.

Dark brown to black; polycrystalline zinc ore.

Pure, bright yellow, Frasch sulfur.

Cleaned, pure, bright, metallic native copper.

Dark, coarse-grained, and composed chiefly of hornblende.

Red, medium, to coarse-grained iron oxide cement; shows hematite bands.

Abundant small black phenocrysts in a gray to brown matrix.

Cemented glacial gravel.

Small, rounded pebbles and tightly cemented granules.

Formalin Preserved without Color Injection

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.

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