is fossil resin or tree sap which sometimes
preserves insects, plants and
fossils are the remains of an extinct marine
animal found throughout the world. In
the ammonite has been replaced by pyrite.
is a rare valuable gemstone found primarily
in Canada. The ammonite remains have been opalized.
Coprolite is fossilized dinosaur dung. It
sounds nasty, but the original material has been replaced by minerals that are
often quite attractive when shaped and polished.
Coquina fossil jasper
is covered with tiny coquina clam fossils.
Fossilized coral ancient coral
has fossils of tiny marine creatures.
are fossils of an extinct sea creature
with a long conical shape.
Petrified dinosaur bone
is dinosaur bone that has become petrified or replaced by minerals.
comes from fossilized trees.
Stromatolite the fossilized remains of microbial
mats that form in limestone. Formed by trapped microorganisms such as
bacteria and algae.