"Classroom Mineral Specimens"

Classic, white chalk, massive; from Cliffs of Dover, England.

Exemplary display of hexoctahedral crystal shape.

Pure kaolinite powder, 200 mesh.

Clear to yellow translucent.

Red, classic oolitic texture.

Gemmy, sherry-colored crystals and sections approximately 3/8– 1/2"

Brownish gray, translucent.

Small 1–1.5 mm crystal, octahedrans or cubes, Mohs” hardness of 10.

Pyroxene group; gray-green, coarse crystalline.

Black, Micaceous, glittery metallic.

Calcite is a translucent calcium carbonate mineral, mohs hardness 3.

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

Classic “peacock” aluminum ore.

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

Blue fluorapatite, pure crystalline, Moh's hardness of 5.

Yellow to orange crystal with a glassy luster and smooth, often transparent appearance.