-
vertices and edges), but
their pentagonal faces are not regular: The
pyritohedron, a
common crystal form in pyrite, has
pyritohedral symmetry,
while the...
- Aida; Koca, Mehmet; Al Qanobi, Amal (2016-12-01). "Symmetry of the
Pyritohedron and Lattices".
Sultan Qaboos University Journal for
Science [SQUJS]....
-
rhombic dodecahedron can be seen as a
degenerate limiting case of a
pyritohedron, with
permutation of
coordinates (±1, ±1, ±1) and (0, 1 + h, 1 − h2)...
- non-regular
pentagonal dodecahedra, the
pyritohedron and the tetartoid. The
transformation to the
pyritohedron can be made by
combining two
adjacent trapezoids...
-
diagonals and the same
combined with inversion. It is also the
symmetry of a
pyritohedron,
which is
extremely similar to the cube described, with each rectangle...
- of the
regular dodecahedron. The
faces of the
pyritohedron are, however, not regular, so the
pyritohedron is also not regular.
Allotropes of
boron and...
-
faces are true
regular pentagons. A
pyritohedral crystal of pyrite. A
pyritohedron has 12
identical pentagonal faces that are not
constrained to be regular...
-
Pyritohedron-shaped
crystals from Italy...
-
pentagonal dodecahedron, the dual of the icosahedron.
Unlike the
similar pyritohedron shape of some cubic-system
crystals such as pyrite, the quasicrystal...
-
these cells are
combinatorially equivalent to
convex polyhedra. One is a
pyritohedron, an
irregular dodecahedron with
pentagonal faces,
possessing tetrahedral...
