Resin
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A resin is a highly viscous liquid or solid that can be converted into a polymer. Resins may be biological or synthetic in origin but are typically harvested from plants. Resins are mixtures of organi
Insect trapped in resin
Cedar of Lebanon cone showing flecks of resin as used in the mummification of Egyptian Pharaohs
Extremely viscous resin extruding from the trunk of a mature Araucaria columnaris
The material dripping from an almond tree looks confusingly like resin, but actually is a gum or mucilage, and chemically very different.
Rosin
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Rosin, also known as colophony or Greek pitch, is a resinous material obtained from pine trees and other plants, mostly conifers. The primary components of rosin are diterpenoids, i.e., C20 carboxylic
A piece of rosin at Mimizan Heritage House, France
Pharmaceutical rosin
An etching plate covered with powder resin
A cake of rosin, made for use by violinists to rub on the violin bow