"VWR"

Gray, fine-grained, massive contact rock.

Fine crystalline, pure calcite.

Compact Plant Fiber Masses.

Dark gray, composed mostly of pyroxene and olivine.

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

Gray to brown mudstone with abundant silt.

Red-brown to gray, coarse-grained, containing feldspar and mica.

Black, fissile; commonly with carbonized fossil plant impressions.

Gray, fine, friable, with abundant small sanidine crystal fragments.

Set of Nine Thin Sections and Matching Rocks

Gray-to-brown basaltic, with over 50% vesicles.

When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.

A Great Way to Begin Your Petrographic Studies

Ideal for Beginning Earth Science Students

Identify and classify unknown rock samples.

Specimens To Supplement the Most Widely-Used College Lab Manual for Physical Geology