In crystallography, the monoclinic crystal system is one of the 7 lattice point groups.

All members of the series belong to the monoclinic crystal system with point group 2/m.

Ixiolite was originally reported as crystallizing in the monoclinic crystal system.

Beraunite crystallizes in the monoclinic crystal system with point group 2/m.

It was concluded that the creedite falls into monoclinic crystal system (2/m) that has space group of C2/c.

The mineral crystallises in the monoclinic crystal system.

It is a purple crystal adopting monoclinic crystal system.

Zirconia exists in the monoclinic, tetragonal or cubic crystal system depending on the temperature.

It has a monoclinic crystal system, vitreous luster, and is transparent to translucent.

Its hardness is 3.5 and it has a monoclinic crystal system.