Fossil preparation techniques range from mechanical to chemical methods depending on the specimen and goals of the effort.
Notes on verification
Confirmed by Wikipedia phrasing and corroborated by multiple institutional sources (NHM, AMNH, ZOIC PalaeoTech) describing the same mechanical/chemical distinction in fossil preparation. [tier=bronze indep_score=0.3 clusters=3 claim_tier=everyday]
Sources
- Fossil preparation (wikipedia)
- https://www.nhm.ac.uk/discover/fossil-preparation.html (corroboration)
- https://www.amnh.org/research/paleontology/collections/fossil-preparation/revealing/techniques/mechanical-preparation (corroboration)
- https://www.zoicpaleotech.com/pages/learn-about-fossil-preparation-tools-1 (corroboration)