"Ward's Phenomena"

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

Brazil.

Specimens Illustrate Smooth Mineral Breakage

Five Types of Cohesiveness

Examples of Different Types of Surface Appearance

Clear examples of a key method of identification.

Himalayan mineral great for teaching and display.

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

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A fascinating and colorful classroom mineral study set.

Beginner’s Collection Illustrates Important Physical Properties