Today I would like to talk about petrification, which is the process by which organic materials are turned into rock.
I had always thought this process happens over a very long time, yet there is evidence to the contrary. A scientific experiment demonstrated that wood placed into a mineral-rich spring was petrified in only 7 years. The spring was full of hot mineral rich acidic (~pH 3) water, giving indication that those are the requirements for rapid petrification. In the lab with controlled conditions this process can happen in a matter of days. On this site a method for quick petrified wood is mentioned, created by Dr. Yongsoon Shin at the department of energy, only taking a matter of 4-12 days, here is a link to the journal article published in Advanced Materials in 2005. The recipe is: wood in an acid bath for two days, then placed in a silica solution for two days, and repeated for up to three times. Then the wood is air dried and placed in an argon furnace gradually heated up to 1400 degrees centigrade for two hours then allowed to cool. This protocol allows the carbon in the wood to be replaced with SiC (silicon carbide). I have yet to test it myself but share your experience if you try it out.