Petrifying process of wood

[Delwin D Fandrich]

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From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of
Farrell
Sent: December 04, 2005 1:42 PM
To: Pianotech
Subject: Re: Petrifying process of wood


Wood is petrified through a process of mineral replacement. Once petrified, the
object that was once wood becomes rock. Petrification occurs over a very long
period of time - thousands/millions of years. It can occur when wood is buried
in the ground and groundwater migrates through it - it is the groundwater
carrying dissolved minerals that is the vehicle for wood petrification.
 
http://www.americansouthwest.net/arizona/petrified_forest/geology.html
 
Wood does not become petrified in a functioning, non-buried piano. Period.
 
Terrence M. Farrell, P.G.
Licensed Professional Geologist 
 
 

You're right about wood but -- based purely on experience -- perhaps not when it
comes to wool. Some hammer makers have figured out how to shortcut the process
in their hammer presses.
 
Del

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