Enum: CrystalSystemEnum

The seven crystal systems in crystallography

Permissible Values

Value	Meaning	Description
TRICLINIC	ENM:9000022	Crystal system with no symmetry constraints (a≠b≠c, α≠β≠γ≠90°)
MONOCLINIC	ENM:9000029	Crystal system with one twofold axis of symmetry (a≠b≠c, α=γ=90°≠β)
ORTHORHOMBIC	ENM:9000031	Crystal system with three mutually perpendicular axes (a≠b≠c, α=β=γ=90°)
TETRAGONAL	ENM:9000032	Crystal system with one fourfold axis (a=b≠c, α=β=γ=90°)
TRIGONAL	ENM:9000054	Crystal system with one threefold axis (a=b=c, α=β=γ≠90°)
HEXAGONAL	PATO:0002509	Crystal system with one sixfold axis (a=b≠c, α=β=90°, γ=120°)
CUBIC	ENM:9000035	Crystal system with four threefold axes (a=b=c, α=β=γ=90°)

Slots

Name	Description
crystal_system	The seven crystal systems in crystallography

Identifier and Mapping Information

Schema Source

from schema: https://w3id.org/linkml/valuesets

LinkML Source

name: CrystalSystemEnum
conforms_to: https://en.wikipedia.org/wiki/Crystal_system
description: The seven crystal systems in crystallography
from_schema: https://w3id.org/linkml/valuesets
rank: 1000
permissible_values:
  TRICLINIC:
    text: TRICLINIC
    description: Crystal system with no symmetry constraints (a≠b≠c, α≠β≠γ≠90°)
    meaning: ENM:9000022
    title: Triclinic
    aliases:
    - anorthic
  MONOCLINIC:
    text: MONOCLINIC
    description: Crystal system with one twofold axis of symmetry (a≠b≠c, α=γ=90°≠β)
    meaning: ENM:9000029
    title: Monoclinic
  ORTHORHOMBIC:
    text: ORTHORHOMBIC
    description: Crystal system with three mutually perpendicular axes (a≠b≠c, α=β=γ=90°)
    meaning: ENM:9000031
    title: Orthorhombic
    aliases:
    - rhombic
  TETRAGONAL:
    text: TETRAGONAL
    description: Crystal system with one fourfold axis (a=b≠c, α=β=γ=90°)
    meaning: ENM:9000032
    title: Tetragonal
  TRIGONAL:
    text: TRIGONAL
    description: Crystal system with one threefold axis (a=b=c, α=β=γ≠90°)
    meaning: ENM:9000054
    title: Trigonal
    aliases:
    - rhombohedral
  HEXAGONAL:
    text: HEXAGONAL
    description: Crystal system with one sixfold axis (a=b≠c, α=β=90°, γ=120°)
    meaning: PATO:0002509
    title: Hexagonal
  CUBIC:
    text: CUBIC
    description: Crystal system with four threefold axes (a=b=c, α=β=γ=90°)
    meaning: ENM:9000035
    title: Cubic
    aliases:
    - isometric