Optical Properties of Minerals main content.

Optical Properties of Minerals

Part of Hall of Minerals.

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Audio Transcript
The specimens on the left show some of the glorious variety of color in minerals. Color in minerals results from the way light interacts with certain atoms, or groups of atoms, present in the mineral.

It can come about in three ways. First, the color-active atoms may be a principal component of the mineral, such as copper in the dioptase specimen, number 10.