Kristallsysteme

Die sieben grundlegenden Kristallsysteme, die die Mineralsymmetrie beschreiben.

Cubic (Isometric)

13

4/m -3 2/m (Oh)

The cubic or isometric crystal system features three mutually perpendicular axes of equal length. Minerals in this system have the …

Hexagonal

2

6/m 2/m 2/m (D6h)

The hexagonal crystal system has four crystallographic axes: three equal horizontal axes intersecting at 120 degrees and one vertical axis …

Orthorhombic

7

2/m 2/m 2/m (D2h)

The orthorhombic crystal system has three mutually perpendicular axes of different lengths. Crystals often form prismatic or tabular shapes. Common …

Tetragonal

4

4/m 2/m 2/m (D4h)

The tetragonal crystal system has three mutually perpendicular axes, two of which are equal in length. Crystals commonly form elongated …

Triclinic

5

-1 (Ci)

The triclinic crystal system has the lowest symmetry of all crystal systems, with three unequal axes at oblique angles. Crystals …

Monoclinic

10

2/m (C2h)

The monoclinic crystal system has three axes of unequal length with one axis inclined to the other two. It is …

Trigonal

9

-3 2/m (D3d)

The trigonal crystal system, sometimes considered a subdivision of hexagonal, features three-fold rotational symmetry. Crystals typically form rhombohedra, scalenohedra, or …