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Disphenoidal or
seesaw (also
known as sawhorse) is a type of
molecular geometry where there are four
bonds to a
central atom with
overall C2v molecular...
- (or honeycomb) in
Euclidean 3-space made up of
identical tetragonal disphenoidal cells.
Cells are face-transitive with 4
identical isosceles triangle...
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include half
cubic honeycomb, half
cubic cellulation, or
tetragonal disphenoidal cellulation. John
Horton Conway calls this
honeycomb a tetroctahedrille...
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similarly related to the
square faces of the
runcinated 24-cell. The
disphenoidal 288-cell is the dual of the
bitruncated 24-cell. It is a 4-dimensional...
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similarly related to the
square faces of the
runcinated 5-cell. The
disphenoidal 30-cell is the dual of the
bitruncated 5-cell. It is a 4-dimensional...
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Primitive Base-centered Face-centered Body-centered 16–24
Rhombic disphenoidal D2 (V) 222 222 [2,2]+
Enantiomorphic Epsomite Boron(gamma form) P222...
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Strunz classification 2.BD.50
Crystal system Tetragonal Crystal class Disphenoidal (4) H-M symbol: (4)
Space group I4
Identification Color Lead-gray Crystal...
- the 24-cell in two dual configurations,
representing the
vertices of a
disphenoidal 288-cell if the edge
lengths of the 24-cells are equal: 24-cell vertices:...
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enantiomorphic polar pinnoite,
piypite P4, P41, P42, P43 I4, I41 81–82
Tetragonal disphenoidal 4 S4 2× [2+,4+] cahnite,
tugtupite P4 I4 83–88
Tetragonal dipyramidal...
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Strunz classification 9.DG.10
Crystal system Orthorhombic Crystal class Disphenoidal (222) H-M symbol: (2 2 2)
Space group C2221 (no. 20) Unit cell a = 11...
