||This is a schematic diagram of resin areas in and out of
a resin producing tree, (Kosmowska-Ceranowicz et al. 1995).
1. Internal crack fillings.
2. Forms under the bark.
3. Resin pocket in the wood.
4. Forms between the bark.
5. Fillings from tree wounds.
6. External stalactite shapes.
8. External drops and swellings.