At the age of 13 Krumins had to start working, as a collector of tree resin.

Amber, hardened tree resin, preserved a mixture of feathers from 70 million years ago.

Without rubber and another kind of tree resin called gutta-percha, it would not have been possible to wire the world.

The town's name refers to the oven tar produced in this area from the pitch of pine tree resin.

The windows had bars and they were clogged with tree resin.

His belonging are also put in, and food, and then a lid was sealed using melted tree resin.

Another tip: wear sturdy, old gloves that protect the hands but will not be ruined by tree resins.

Amber, fossilized tree resin, is one of Latvia's most important cultural symbols.

For example, Hertz was able to focus the waves using a lens made of tree resin.

Amber is not a semi-precious stone, but a fossilized tree resin.