Mineral replacement fossils are formed when minerals gradually replace the organic material of an organism, preserving its shape and structure. This process occurs when the organism is quickly buried by sediment, cutting off oxygen and preventing decomposition. Over time, minerals such as silica, calcite, or pyrite gradually infiltrate the spaces left behind by the decaying organic material, creating a replica of the original organism.
Common formations found inside rocks include sedimentary layers, mineral deposits, fossils, and crystal structures. These formations provide valuable information about the rock's history and the conditions under which it formed.
Sedimentary rocks that formed organically typically contain calcite. Fossils are most likely to be found in sedimentary rocks.
petrified wood
No. Dolomite is formed by the replacement of Calcium in the mineral calcite by Magnesium, giving the chemical formula (Ca,Mg)CaCO3. Rocks formed largely of calcite are called limestones, and those which show extensive Magnesium substitution in calcite are called Dolomitic limestones.
The Mica mineral can change to the mineral group known as amphiboles when Gneiss is formed. This transformation occurs due to the high pressure and temperature conditions during the metamorphic process.
Fossils can be formed by:MummificationPetrificationDesiccationRelated question on Answers.com:How are fossils formed?
fossil replacement is when you Suck MY MEAT ! ;D
A fossil is not a mineral.
yes
by fossils
imprints gastroliths coproliths molds
No, an organism does not have to be buried to become a fossil. Fossils can form through a variety of processes, such as compression, mineral replacement, or petrification, which can occur even without burial.
It depends what fossil you're talking about but normally fossils are found in sedimentary rocks. But diatomaceous earth, and limestones contain fossils, or are made of fossils.
Fossils form through the process of mineral replacement beginning when an organism dies and is buried. Groundwater seeps around the organism, and the minerals in the water gradually replace the minerals in the hard parts of the organism. Over time these minerals turn into a stone replica of an organism.
Calcite is a common carbonate mineral that often replaces the original mineral in fossils during the fossilization process. Calcite can help preserve the structure of the fossil while replacing the original material.
you
You don't. A fossil is not the animal/plant, it is an impression, altered by the replacement of one mineral by another due to burial with usually some pressure/heat involved.