"serv Dial Sud & sars"

Includes: six each of conglomerate, sandstone and shale. Set of 18.

Common rocks and minerals for testing and identification studies are 2–3cm each.

Includes: six each of marble, slate, and quartzite. Set of 18.

Common rocks and minerals for testing and identification studies are 2–3cm each.

Includes: six each of obsidian, pumice, and basalt. Set of 18.

Common rocks and minerals for testing and identification studies are 2–3cm each.

Brownish black, intermediate stage between peat and bituminous coal.

Compact Plant Fiber Masses.

Dark gray, composed mostly of pyroxene and olivine.

Gray and poorly sorted, with a gritty texture.

Coarse-grained plagioclase and pyroxene with some olivine.

Coarse-grained, with microcline, biotite and horblende phenocrysts.

Gray to white, coarse crystalline, carbonate rock.

Pink/gray coarse carbonate rock.

Dark, coarse-grained, and composed chiefly of hornblende.

Lustrous, black 'hard coal'.

Black, soft; most widely mined.

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

Fightly cemented, medium-to-coarse quartz grains.