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Characteristics of Tetragonal Crystals
- 3 crystallographic axes that make right angles with each other
- 2 horizontal axes of equal length, vertical axis is of a different length
- unique 4-fold symmetry
Ditetragonal
dipyramid
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Prism |
Scalenohedron
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Trapezohedron
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Common Minerals of the Hexagonal System
- Zircon
- Rutile
- Anatase
- Cassiterite
- Apophyllite
- Idocrase
- Phosgenite
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- Chalcopyrite
- Stannite
- Fergusonite
- Scheelite
- Powellite
- Scapolite
- Wulfenite
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