Cubic crystal system | face centered cubic coordination number
Arockcontainingthreecrystalsofpyrite(FeS2).Thecrystalstructureofpyriteisprimitivecubic,andthisisreflectedinthecubicsymmetryofitsnaturalcrystalfacets.AnetworkmodelofaprimitivecubicsystemTheprimitiveandcubicclose-packed(alsoknownasface-centeredcubic)unitcellsIncrystallography,thecubic(orisometric)crystalsystemisacrystalsystemwheretheunitcellisintheshapeofacube.Thisisoneofthemostcommonandsimplestshapesfoundincrystalsandminerals.Therearethreemainvarietiesofthesecrystals:Primitivecubic(abbreviate...
A rock containing three crystals of pyrite (FeS2). The crystal structure of pyrite is primitive cubic, and this is reflected in the cubic symmetry of its natural crystal facets. A network model of a primitive cubic system The primitive and cubic close-packed (also known as face-centered cubic) unit cellsIn crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.
There are three main varieties of these crystals:
Primitive cubic (abbreviated cP and alternatively called simple cubic) Body-centered cubic (abbreviated cI or bcc) Face-centered cubic (abbreviated cF or fcc, and alternatively called cubic close-packed or ccp)Each is subdivided into other variants listed below. Note that although the unit cell in these crystals is conventionally taken to be a cube, the primitive unit cell often is not.
Bravais latti...