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rhombohedral    
菱面型; 菱形; 菱形六面体

菱面型; 菱形; 菱形六面体

rhombohedral
adj 1: having threefold symmetry [synonym: {rhombohedral},
{trigonal}]


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  • Rhombohedron - Wikipedia
    It can be used to define the rhombohedral lattice system, a honeycomb with rhombohedral cells A rhombohedron has two opposite apices at which all face angles are equal; a prolate rhombohedron has this common angle acute, and an oblate rhombohedron has an obtuse angle at these vertices
  • 7. 1: Crystal Structure - Chemistry LibreTexts
    The rhombohedral lattice is also known as trigonal, and has no angles equal to 90°, but all sides are of equal length (a = b = c), thus requiring only by one lattice parameter, and all three angles are equal (α = β = γ)
  • Simple Rhombohedral Unit Cell – Materials Science Engineering
    The Simple Rhombohedral (SR), or primitive rhombohedral unit cell, is an unusual way that atoms can be arranged in solids This crystal structure is found in non-STP phases of polonium, mercury, and lithium
  • Rhombohedral Crystal - an overview | ScienceDirect Topics
    A rhombohedral crystal is defined as a type of crystal that exhibits a specific morphology characterized by three equal axes that are inclined to each other, resulting in a shape resembling a distorted cube
  • Bravais Lattices: Rhombohedral
    This figure shows the rhombohedrally-centred hexagonal cell (solid lines) and its relationship to the primitive rhombohedral cell (dotted lines); the two-middle points on the dashed line correspond to the rhombohedral lattice centring
  • Rhombohedron -- from Wolfram MathWorld
    A rhombohedron is a parallelepiped bounded by six rhombi such that opposite faces are congruent A rhombohedron having all six rhombic faces congruent is known as a trigonal trapezohedron Special cases include the cube and two golden rhombohedra
  • Rhombohedral: Inorganic Chemistry I Study Guide | Fiveable
    Rhombohedral crystals belong to the trigonal crystal system and have three axes of equal length that intersect at angles other than 90 degrees Common examples of rhombohedral structures include minerals like calcite and quartz, which exhibit unique optical properties due to their crystal symmetry
  • RHOMBOHEDRAL Definition Meaning - Merriam-Webster
    The meaning of RHOMBOHEDRAL is relating to or having the form of a rhombohedron or a form derivable from a rhombohedron
  • Rhombohedral Crystal Structure — Definition, Properties and Examples
    What is Rhombohedral Crystal Structure? In a rhombohedral crystal structure, all edges have the same length (a = b = c) and all angles are equal but different from 90°
  • Rhombohedral – Knowledge and References – Taylor Francis
    Rhombohedral refers to a crystal structure that has a shape resembling a rhombus, with three equal sides and three equal angles It is often used interchangeably with trigonal, as both terms describe structures with three-fold rotational symmetry





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