Forms | Crystal Classes |
|
Pedial | Pinacoidal |
|
pedions(1) | X | |
pinacoid(s)(2) | X | |
Monoclinic
System |
Forms | Crystal Classes |
Sphenoidal | Domatic | Prismatic | |
pedions(1) | X | X | |
pinacoid(s)(2) | X | X | X |
dome(s)(2) | X | ||
sphenoid(s)(2) | X | ||
prism(s)(4) | X |
Orthorhombic
System
|
Tetragonal System | |
Forms |
Crystal Classes |
Tetragonal Pyramidal | Tetragonal Disphenoidal | Tetragonal Dipyramidal | Tetragonal Trapezohedral | Ditetragonal Pyramidal | Tetragonal Scalenohedral | Ditetragonal Dipyramidal | |
pedion(s) | X | X | |||||
pinacoid | X | X | X | X | X | ||
tetragonal disphenoid(s)(4) | X | X | |||||
tetragonal prism(s)(4) | X | X | X | X | X | X | X |
ditetragonal prism(8) | X | X | X | X | |||
tetragonal pyramid(s)(4) | X | X | |||||
ditetragonal pyramid (8) | X | ||||||
tetragonal dipyramid(s)(8) | X | X | X | X | |||
ditetragonal dipyramid(16) | X | ||||||
tetragonal scalenohedron (8) | X | ||||||
tetragonal trapezohedron (8) | X |
|
||||
Hexagonal System Rhombohedral Division
|
Trigonal Pyramidal | Rhombohedral | Trigonal Trapezohedral | Ditrigonal Pyramidal | Trigonal Scalenohedral | |
pedion(s) | X | X | |||
pinacoid(s) | X | X | X | ||
trigonal prism(s)(3) | X | X | X | ||
hexagonal prism(s)(6) | X | X | X | X | |
dihexagonal prism(s)(12) | X | ||||
ditrigonal prism(s)(6) | X | X | |||
trigonal pyramid(s)(3) | X | X | |||
hexagonal pyramid(s)(6) | X | ||||
ditrigonal pyramid(s)(6) | X | ||||
trigonal dipyramid(s)(6) | X | ||||
hexagonal dipyramid(12) | X | ||||
(di)trigonal scalenohedron(12) | X | ||||
trigonal trapezohedron(s)(6) | X | ||||
rhombohedrons(6) | X | X | X | ||
Hexagonal
System Hexagonal Division |
Forms | Crystal Classes |
Hexagonal Pyramidal | Trigonal Dipyramidal | Hexagonal Dipyramidal | Hexagonal Trapezohedral | Dihexagonal Pyramidal | Ditrigonal Dipyramidal | Dihexagonal Dipyramidal | |
pedion | X | X | |||||
pinacoid | X | X | X | X | X | ||
trigonal prism(s)(3) | X | X | |||||
hexagonal prism(s)(6) | X | X | X | X | X | X | |
dihexagonal prism(12) | X | X | X | ||||
ditrigonal prism(s)(6) | X | ||||||
hexagonal pyramid(s)(6) | X | X | |||||
dihexagonal pyramid(s) (12) | X | ||||||
trigonal dipyramid(s) (6) | X | X | |||||
hexagonal dipyramid(s) (12) | X | X | X | X | |||
dihexagonal dipyramid (24) | X | ||||||
ditrigonal dipyramid(s) (12) | X | ||||||
hexagonal trapezohe- dron(s)(12) | X | ||||||
Isometric System |
Forms | Crystal Classes |
Tetartoidal | Diploidal | Gyroidal | Hextetrahedral | Hexoctahedral | |
cube(hexahedron) (6) | X | X | X | X | X |
octahedron(8) | X | X | X | ||
dodecahedron (12) | X | X | X | X | X |
tetrahexahedron (24) | X | X | |||
trapezohedron(24) | X | X | X | ||
trisoctahedron(24) | X | X | X | ||
hexoctahedron(48) | X | ||||
tetrahedron(4) | X | X | |||
tristetrahedron(12) | X | X | |||
deltoid dodecahedron(12) | X | X | |||
hextetrahedron(24) | X | ||||
diploid(24) | X | ||||
pyritohedron(12) | X | X | |||
tetartoid(12) | X | ||||
gyroid(24) | X | ||||