"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.

Brownish gray, translucent.

Black, Micaceous, glittery metallic.

Pyroxene group; gray-green, coarse crystalline.

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

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

Classic “peacock” aluminum ore.

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

Feldspar group; greenish gray alkali feldspar, coarse crystalline, some iridescence.

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

Feldspar group; white to gray, sodium plagioclase cleavages; some faces may show twinning.

Cut black mica cleavage sheets.