from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A form of fossilization in which minerals are deposited in the pores of bone and similar hard animal parts
from The Century Dictionary and Cyclopedia
- n. That change of character, exhibited by most fossil remains, in which the gradual removal of the animal substance has been accompanied by the replacement by mineral matter.
Fossils are often preserved in a process known as permineralization, in which mineral deposits form internal casts of organisms.
There are three main steps towards permineralization of living plant matter:
The process in which wood is preserved by permineralization, commonly known as petrification, takes extensive amounts of time.