Rudraksha is a Sanskrit compound word consisting of Rudra and aksh. Rudra is one of the shivas vedic name and Aksh means teardrops. Thus define means lord rudras teardrops. Rudraksha beads have between one to twenty-one lines (Mukhi) and in ancient times it was up to 108 Mukhi now it is up to 30 Mukhi.
80% of the rudraksha have 4, 5, 6 lines even those with single line are the rarest. Rudraksha from Nepal are between 20 and 35mm and those from Indonesia are between 5 and 25mm (0.20 and 0.98) inches. rudraksha are white, red, brown most common yellow and black are same as varna system.
Gouri Shankar are two rudraksha naturally joined together. Ganesha have a trunk-like protrusion on their body. sawar is gouri Shankar rudraksha in which one bead has only one line. There is a long tradition of wearing 108 rudraksha beads in India, particularly within Shaivism, due to their association with Shiva, who wears rudraksha garlands. The mantra Om Namah Shivaya is repeated (Japa) using rudraksha beads. Hindus have used Rudraksha malas as rosaries for meditation purposes and to sanctify the mind, body, and soul.
As per details found in the Purana there are fourteen kinds of Rudraksha, which are called Mukhi or faceted Rudraksha. There are deep lines found on the surface of the Rudraksha from the bottom to the top hole and the number of these lines decides about the type or Mukhi Rudraksha and that rudraksha is called by the number of lines + mukhi or faceted.