frozen fossil
Amber.
The answer is Mold
Fossil
Brain Tumors
There are mold and cast fossils in many local creeks, streams, and/or rivers.If the original organism dissolves or decays, leaving a hollow in the rock, that is a mold.If the mold fills up with sediment which gradually hardens into the shape of the original organism, then that is a cast.Casts are copies of fossilized plants or animals. Molds are hollow impressions of the fossil.Its a Fossil.
if the original organism dissolves or decays, leaving a hollow in the rock, that is a mold. If the mold fills up with sediment which gradually hardens into the shape of the original organism, then that is a cast. Casts are copies of fossilized plants or animals. Molds are hollow impressions of the fossil.
An object that was repllaced by rock so the fossil is now 3D.
The Answer to this is mold. It leaves a hollow space in the fossil so you can see the formation.
The answer is Mold
The mold
Fossil
Fossil
Brain Tumors
A fossil mold is formed by the impression left in rock by the remains of an organism. A cast fossil occurs when the mold is filled in by precipitating minerals.
The best way to identify fossils is to get a book or website that shows pictures of different types. Most fossils are formed by petrification, where part of the dead organism has slowly changed into rock. However, you might also find a fossil cast, where rock has formed around a dead organism and left a mold; it can either be a hollow space, or more rock may have filled in the shape of the organism. There are even fossil footprints and fossil poo!
There are mold and cast fossils in many local creeks, streams, and/or rivers.If the original organism dissolves or decays, leaving a hollow in the rock, that is a mold.If the mold fills up with sediment which gradually hardens into the shape of the original organism, then that is a cast.Casts are copies of fossilized plants or animals. Molds are hollow impressions of the fossil.Its a Fossil.
if the original organism dissolves or decays, leaving a hollow in the rock, that is a mold. If the mold fills up with sediment which gradually hardens into the shape of the original organism, then that is a cast. Casts are copies of fossilized plants or animals. Molds are hollow impressions of the fossil.
if the original organism dissolves or decays, leaving a hollow in the rock, that is a mold. If the mold fills up with sediment which gradually hardens into the shape of the original organism, then that is a cast. Casts are copies of fossilized plants or animals. Molds are hollow impressions of the fossil.