Monoclinic and rhombohedral structures are two types of crystal systems characterized by specific arrangements of atoms. The monoclinic system has three unequal axes, with one of the angles not equal to 90 degrees, while the rhombohedral (or trigonal) system has three equal axes that are inclined to each other at oblique angles. These structures are important in mineralogy and materials science, influencing the properties and behaviors of various crystalline materials. Each system has unique symmetry characteristics that impact how the crystals interact with light and other physical phenomena.
There are seven basic crystal classes in crystallography, which are categorized based on their symmetry properties. These classes correspond to the seven crystal systems: cubic, tetragonal, orthorhombic, hexagonal, rhombohedral, monoclinic, and triclinic. Each class exhibits specific symmetry elements and arrangements of atoms.
Gypsum is a mineral with a monoclinic crystal system. Its crystals typically form as prismatic or tabular monoclinic shapes.
Rhombohedral.
Crystal systems differ based on the arrangement of atoms within the crystal lattice. There are seven crystal systems: cubic, tetragonal, orthorhombic, monoclinic, triclinic, hexagonal, and rhombohedral. Each system has unique geometric properties that define the shape of the crystals formed.
Monoclinic.
Dolomite typically exhibits three cleavage planes that intersect at approximately 90 degrees, resulting in rhombohedral cleavage.
Gypsum and orthoclase feldspar are in the monoclinic crystal system.
Monoclinic.
Monoclinic
Micas are monoclinic.
spores
cells