Natural Petrified Wood Sinks
Fossil wood (petrified wood) was formed during the
Triassic period and is 4 times as hard as granite
and very colorful, due to the effect of impurities
such as iron, manganese, copper and lithium present
in the wood during the fossilizing process.The usual
color of petrified wood is red, with yellow, black
and white bands although other shades such as blue
are often found.The stone has high silica content,
and is generally similar to agate in composition and
appearance. Only the trunks of trees seem to be preserved
but these may be almost complete, up to 32 feet in
length and up to 6 feet thick at the base although
they tend to be broken up into sections.
