Description 
 
Pine Resin (Pinus sp.), also called Colophony, Rosin and Greek pitch, is a solid form of resin obtained from various species of Pine trees and some other conifers. The resin is usually produced by heating fresh liquid resin to vaporize the volatile liquid terpene components. It is often semi-transparent and ranges in colour from yellow to black. At room temperature Pine resin is brittle, but it easily melts at slightly higher temperatures. Gum Rosin chiefly consists of various resin acids, especially abietic acid.