Resin's are found in nature, for example tree sap is a resin. Resin is anywhere from translucent, transparent, to light yellow, to dark browns in color. They are tasteless and odorless. they are brittle and break like glass. When made with jewelry resin is melted and put in mold and a hardener is added. You can add colors also, found where you purchase jewelry making supplies typically.
The primary uses for most resins are in varnish, shellac, and lacquer, in medicine, in molded articles (e.g., Jewelry )