"WardsSci000478"

Light pink, massive, crystalline, translucent.

Pure, bright yellow, Frasch sulfur.

Hardened natural cement of calcium carbonate that binds other material such as gravel, sand, clay, and silt.

Kaolin is a white clay mineral that has vast industrial uses

Bright metallic cubic cleavages; lead ore.

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

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

Specimens illustrate important stages of mineral formation.

Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.

Specimens to supplement the most widely-used college lab manual for physical geology.