- tetragonal bipyramid
- 正方双锥
English-Chinese geology dictionary (英汉地质大词典). 2013.
English-Chinese geology dictionary (英汉地质大词典). 2013.
Bipyramid — For Dipyramid, see mountain and Dipyramid (Alaska). Set of bipyramids (Example hexagonal form) Faces 2n triangles Edges 3n Vertices n + 2 … Wikipedia
Octahedron — For the album by The Mars Volta, see Octahedron (album). Regular Octahedron (Click here for rotating model) Type Platonic solid Elements F = 8, E = 12 V = 6 (χ = 2) Faces by sides … Wikipedia
Trapezohedron — Set of trapezohedra Faces 2n kites Edges 4n Vertices 2n+2 Face configuration V3.3.3.n … Wikipedia
Nowotny phase — A Nowotny chimney ladder phase (NCL phase) in inorganic chemistry is a particular intermetallic crystal structure found with certain binary compounds. NLC phases are generally tetragonal and are composed of two separate sublattices. The first is… … Wikipedia
Deltoidal icositetrahedron — Click on picture for large version. Click here for spinning version. Type Catalan Face polygon kite Faces 24 … Wikipedia
Deltoidal hexecontahedron — Click on picture for large version spinning version Type Catalan Face polygon kite Faces 60 Edges … Wikipedia
Tellurium dioxide — Other names … Wikipedia
dipyramid — (ˈ)dī+ noun Etymology: di + pyramid : a crystal consisting of two pyramids base to base, the one geometrically a mirror image of the other with respect to the horizontal plane of symmetry dipyramids occur in the tetragonal, hexagonal, and… … Useful english dictionary
Cube — This article is about the geometric shape. For other uses, see Cube (disambiguation). Regular Hexahedron (Click here for rotating model) Type Platonic solid Elements F = 6, E = 12 V = 8 (χ = 2) … Wikipedia
Allotropes of carbon — Eight allotropes of carbon: a) Diamond, b) Graphite, c) Lonsdaleite, d) C60 (Buckminsterfullerene or buckyball), e) C540, f) C70, g) Amorphous carbon, and h) single walled carbon nanotube or buckytube. This is a list of the allotropes of carb … Wikipedia
Interhalogen — The halogens react with each other to form interhalogen compounds.The general formula of most interhalogen compounds is XYn, where n = 1, 3, 5 or 7 (X is the less electronegative of the two halogens). They are all prone to hydrolysis, and ionise… … Wikipedia