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Gemstones 250x250

Glossary of Terms

Axis

Imaginary line drawn through the center of an object, either horizontally or vertically. In the case of minerals, it is used to determine if and how a crystal has symmetry. The horizontal axis is known as the x axis, and the vertical axis as the y axis. Axis lines are usually drawn as dotted lines.

This Crystal shows the Axis of Each of its 3 Dimensions.

Crystals kindly provided by Smorf


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