I do not know if I will add something, but ...
Here in Brazil, dragon's blood is known as an oleoresin
extracted from the trunk of a single amazon tree that has the same dragon's blood name (sci: croton iechleri). It does not have a solid form. It is a red viscous liquid instead, as FrouFrou had mentioned earlier, and is sold in raw form without any mixtures.
It is used by amazonian indians for centuries as medicine and sacred rituals. I can’t tell if it can be also used in perfumery nor that smell it look, but I suppose it can’t add much by itself.
If anyone wants to buy brazilian dragon's blood (in portuguese, sangue de dragÃ£o) or other well-known essential oils of amazonian plants as copaÃ*ba (oleoresin), cumaru (tonka bean), pau-rosa (true rosewood), pau-santo (guaiacwood) and pimenta-rosa (pink pepper) try the site below. Definitely worth checking out the brazilian patchouli essential oil, which is different to the Caribbean patchouli (is fresher and is more herbal). For anyone who manufactures soaps, worth to try pracaxi oil, which is better than argan oil.
I would invite you to try priprioca (cyperus articulatus) essential oil and breu-branco resin (protium hepytaphyllum), which are unknown even by perfumers of Brazil, but this site does not sell them. If someone wants I can also look for suppliers who sell out of Brazil.http://www.viessence.com.br/
The website is only in portuguese. For international orders it accepts only credit card. To order values over USD.3,000. 00 (approximately 1,500.00 Brazilian Real) send e-mail to:firstname.lastname@example.org
I do not have economic interests in it…
Absolve my Google’s english.