"Avantor"

Perfect for Introductory Lessons on Metamorphic Rocks.

White and black bands of quartz, feldspar, and biotite; typical foliation.

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

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

Gray, fine-grained, massive contact rock.

Fine crystalline, pure calcite.

Light gray, fine-grained, well-foliated, schistose.

Pink and gray bands, with biotite; shows good foliation.

Gray to white, coarse crystalline, carbonate rock.

Pink/gray coarse carbonate rock.

Fightly cemented, medium-to-coarse quartz grains.

Foliated biotite, coarse, silvery gray with quartz-feldspar bands.

Slaty cleavage; contains hematite.

Chlorite-mica with perfect slaty cleavage.

White, very dark green, and very dark red to light red granoblastic intergrowth of wollastonite, diopside, and andradite.

Massive, chlorite-rich.

Chlorite-bearing.