"Ward's Phenomena"

A fascinating and colorful classroom mineral study set.

Great value for the microscopic study of Feldspar minerals.

Great value for the microscopic study of Pyroxene minerals

Five Types of Cohesiveness

Activities to Examine the Appearance of Minerals

A variety of tensile strengths and physical traits represented.

Substantial Set of Economically Important Minerals

Hornblende is a dark amphibole group mineral, perfect for teaching Bowen's reaction series.

Sale

Metamorphosed rock showing foliation and rich in hornblende.

Excellet series for college mineralogy and petrology courses.

Iron oxide-hydroxide mineral; reddish brown to black color; crystal habit ranges from massive to acicular.

Brazil.