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Light pink, massive, crystalline, translucent.

Sale

Massive sedimentary gypsum with a moh's hardness 2..

Earthy, yellow brown iron ore.

Kaolin is a white clay mineral that has vast industrial uses

Sale

Metamorphosed rock showing foliation and rich in hornblende.

Hemalite is a Massive, dense red to gray, classic example of iron ore.

White to gray, medium to coarse-grained, crystalline.

Sale

A textbook example of pure crystalline carbon which is extermely soft.

Hornblende is a dark amphibole group mineral, perfect for teaching Bowen's reaction series.

Sale

Massive white quartz with a moh's hardness 7.