[ Top ] [ Japanese ]

Granular, Granule(s)

Grain-form crystals having almost same length in any direction. Crystals of the cubic system tend to show this habit but those of other crystal systems may also show this habit.

This form may change continuously to bipyramidal, prismatic, and tabular forms.

• Classification: Single crystal

• Frequency:
• Cubic: very common
• Tetragonal: rare
• Orthorhombic: rare
• Hexagonal: rare
• Trigonal: frequent
• Monoclinic: rare
• Triclinic: frequent

• Examples:
• Tetragonal, Tetragon
• Cubic, Cube
• Rectangular cuboidal, Rectangular cuboid
• Rhombohedral, Rhombohedron
• Octahedral, Octahedron
• Regular dodecahedral, Regular dodecahedron, (Pyritehedral, Pyritehedron)
• Rhombic dodecahedral, Rhombic dodecahedron
• Deltoidal icositetrahedral, Deltoidal icositetrahedron