Structure Tetragonal

Two axes are of equal length and are in the same plane, the main axis is either longer or shorter, and all three intersect at right angles.
Based on a rectangular inner structure.

Crystal shapes:

  • Four-sided prisms and pyramids
  • Trapezohedrons
  • Eight-sided and double pyramids
  • Icosi-tetrahedron (pyrite, sphalerite)
  • Hexacisochedron (pyrite)


Some Tetragonal Crystals:

  • Anatase
  • Apophyllite
  • Chalcopyrite
  • Rutile
  • Scapolite
  • Scheelite
  • Wulfenite
  • Zircon

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