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Specimens Illustrate Smooth Mineral Breakage

Beginner’s Collection Illustrates Important Physical Properties

Examples of Different Types of Surface Appearance

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

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

A Complete Kit to Communicate the Concept of Hardness in Minerals

Examples of Different Forms of Breakage in Minerals

Geometric Shapes and Structures of Crystalline Minerals.

Samples of Minerals That Are Found in Rocks

Study the Formation of Different Igneous Rocks

Indicative of Various Sedimentary Formation Processes

Altered Igneous and Sedimentary Rocks are Clearly Represented

Give Your Students a Lesson in Economics as Well as Geology

Good grade, brass-yellow copper ore, massive.

Brown, fluorescent crystals intergrown in dolomite rock.

Amphibole group; dark greenish black cleavages, somewhat columnar.