Agarwood, Oudwood or Oudhwood, is a complex and fragrant burnable wood, creating a warm home-like feeling for many, as well as creating an anxiety stress free atmosphere. It is also mentioned in the Bible, as Aloe wood.
This variety is from Thailand and is the outer bark of the heartwood of the Agarwood bearing tree. this seems to have a soft vaguely nutty smell, and unique hint of the smells of a freshly opened Bee hive.
Oudwood is formed in the heartwood of Aquilaria trees when they become infected with a type mould (Phialophora parasitica).