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FossilEra is your trusted source to buy high quality fossils, collectable minerals and stunning crystals. Whether you are are a passionate collector or looking for a unique gift you can find it in our diverse selection of fossils for sale.
- FOSSILS
Why Buy Fossils From Fossil Era? FossilEra is the largest...
- CRYSTALS
Tourmaline is the name applied to a group of closely related...
- METEORITES
Three main types of meteorites exist, and each type is...
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Specimens for sale! FossilEra offers a diverse selection of...
- ABOUT
Developer turns his love of fossils into a growing...
- Just What Is a Lagerstätte
Part of the larger Niobrara Chalk Formation, the Smoky Hill...
- Tiger's Eye
The crack-seal mechanism that forms tiger's eye begins when...
- Septarian
Most septarian nodules contain siderite/aragonite and...
- FOSSILS
14 cze 2024 · Petrified wood is classified as a fossil, with some samples dating to hundreds of millions of years ago. Essentially, the material is wood with its biological components replaced by minerals: mostly silica but sometimes fluorite, pyrite, or calcite.
Petrified fossils are formed when the original organic material of a once-living organism is slowly replaced by minerals, effectively turning to stone. This occurs over an extended period of time through a process known as petrification or permineralization.
Petrified fossils result from permineralization, the replacement of once-living matter by minerals. Solutions containing silicates, carbonates, iron or other minerals seep into the gaps and spaces between the cells, first encasing the cells and eventually replacing the cells themselves.
In geology, petrifaction or petrification (from Ancient Greek πέτρα (pétra) 'rock, stone') is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.
26 paź 2023 · Petrified wood refers to a fossil formed when the organic components of woody plant material are gradually replaced by minerals, predominantly silica, via a process called permineralization. This process can only take place under the right set of circumstances.
This is a 7.95" wide, polished slab of petrified wood from the Chinle Formation of Arizona. The polishing work on this piece is fabulous. It comes with a display stand.
