how crystal systems are described in mineralogy 



this is created by joining the points of the space lattice to produce a series of parallelsided boxes 


a complete unit of the crystal pattern, because the complete pattern is reproduced at each lattice point 

how the particular unit cell is chosen for a space lattice 

generally selected as a matter of convenience in visualizing the symmetry and making the mathematical computations 

the unit cell is defined by… 

the parameters a, b, and c (the x, y, and z dimensions of the unit cell) and the angles ?, ?, and ? 

the angle ? in unit cells 

the angle between the b and c axes 

the angle ? in unit cells 

the angle between the a and c axes 

the angle ? in unit cells 

the angle between the a and b axes 


the chemical composition of a unit cell in a mineral 

the difference between crystal structure and crystal lattice 

a crystal structure is real and tangible; describes the actual physical assemblages of atoms in the structure a crystal lattice is conceptual and reflects an infinite and uniform distribution of points in space 

the number of unique ways in which lattice points can be arranged in 3D space 



the types of lattices that occur in minerals 

the Bravais lattices are divided into 6 ______ based on ______. 

crystal systems the symmetry of the 3D structure 






primitive lattice that includes a lattice point centered in the ab plane of the monoclinic system 


primitive lattice that includes a lattice point that is centered within the body of the primitive lattice (termed body centered) of the cubic, tetragonal, and orthorhombic systems 


primitive lattice that includes lattice points centered on all faces of the primitive lattice of the cubic and orthorhombic systems 


the rhombohedral (trigonal) lattice type of the hexagonal system 

how crystal systems are described in mineralogy 



this is created by joining the points of the space lattice to produce a series of parallelsided boxes 


a complete unit of the crystal pattern, because the complete pattern is reproduced at each lattice point 

how the particular unit cell is chosen for a space lattice 

generally selected as a matter of convenience in visualizing the symmetry and making the mathematical computations 

the unit cell is defined by… 

the parameters a, b, and c (the x, y, and z dimensions of the unit cell) and the angles ?, ?, and ? 

the angle ? in unit cells 

the angle between the b and c axes 

the angle ? in unit cells 

the angle between the a and c axes 

the angle ? in unit cells 

the angle between the a and b axes 


the chemical composition of a unit cell in a mineral 

the difference between crystal structure and crystal lattice 

a crystal structure is real and tangible; describes the actual physical assemblages of atoms in the structure a crystal lattice is conceptual and reflects an infinite and uniform distribution of points in space 

the number of unique ways in which lattice points can be arranged in 3D space 



the types of lattices that occur in minerals 

the Bravais lattices are divided into 6 ______ based on ______. 

crystal systems the symmetry of the 3D structure 






primitive lattice that includes a lattice point centered in the ab plane of the monoclinic system 


primitive lattice that includes a lattice point that is centered within the body of the primitive lattice (termed body centered) of the cubic, tetragonal, and orthorhombic systems 


primitive lattice that includes lattice points centered on all faces of the primitive lattice of the cubic and orthorhombic systems 


the rhombohedral (trigonal) lattice type of the hexagonal system 
