"gel box"

Cleaned, pure, bright, metallic native copper.

Feldspar group; white-to-gray cleavages of sodic plagioclase; some show twinning.

Amphibole group; black, coarse, massive.

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

Spinel group; black, dull metallic luster; common iron oxide.

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

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

White, fibrous, silky luster.

Bright blue crystalline veins and coatings in a matrix of mixed copper ore.

Bright metallic cubic cleavages; lead ore.