The triclinic crystal system is the least symmetrical of all the recognised systems in crystallography. It is defined by three axes of unequal length, none of which meet at right angles. All three interaxial angles are oblique, meaning each one departs slightly from 90 degrees. This produces a lattice that is subtly skewed in every direction, giving triclinic minerals their characteristic lack of obvious symmetry. In crystallography, axes represent the repeating directions of atoms within a mine