Are there other stones that resemble the banding of agate in the
In general the process of fossilization is replacement of organic
material with minerals. While in many cases the replacement mineral
is quartz and therefore is the name agatized, it does not have to
Another class of fossilized material called marbleized. That is where
replacement materials are carbonates like calcite, dolomite, and
Another group which can participate in the process are actinolites.
These include barite, pyrite, and etc.
These are not exclusive, but simply a few examples. It all depends on
mineral composition of the rock where process takes place.
In sedimentary deposits with high clay contents - replacement with
pyrite will be encountered frequently.
In volcanic rocks - replacement with chalcedony will be found often.
So, all the different opinions on the subject are technically