The results are polished pieces of petrified wood in baroque shapes showing the color and grain of the wood. Crystals inside petrified logs: Some petrified logs contain a spectacular surprise! Cavities within them served as crystallization locations for quartz crystals such as the citrine yellow, left and amethyst purple, right shown here.
Images by Petrified Forest National Park. Louisiana palm wood: An oval cabochon cut from Louisiana Palm "Wood. The lines represent the vascular structure of the plant.
The cabochon is about 57 x 33 millimeters in size. A material found in the Catahoula Formation of Louisiana , Mississippi and Texas is widely known as " petrified palm wood. These tubes transported water, nutrients, wastes and other materials through the plant. Author: Hobart M. King , Ph. How Does it Form? Opal Chalcedony Specific Gravity 2. Find Other Topics on Geology.
Maps Volcanoes World Maps. The Green River Formation. Fossil Gems. Animal Fossils. Petrified Wood. Fossil Kits. Fossils and Beer. Rocks: Galleries of igneous, sedimentary and metamorphic rock photos with descriptions. Minerals: Information about ore minerals, gem materials and rock-forming minerals. Volcanoes: Articles about volcanoes, volcanic hazards and eruptions past and present. Gemstones: Colorful images and articles about diamonds and colored stones. Petrified wood is from fallen trees that usually get washed down in a river or has fallen into a lake.
This wood becomes buried under layers of mud as well as ash from volcanoes and other types of materials. Sealed under these rotting layers is material that has been deprived with oxygen which is the necessary ingredient for decay. As the organic tissues break down over time, the resulting open sections are filled with minerals like silica. Over millions of years, the minerals that settle inside the crevices of wood crystallize to form a stone-like material known as petrified wood.
Petrified wood can take millions of years to form. The natural action of sedimentation and the penetration of minerals is a slow but efficient process that cannot be rushed. The result is like mineralized wood which is as strong as a rock. But do you know that there are studies that show that wood can actually petrify quickly? Not as quick as a year but definitely less time than it takes for wood to decay and petrify in a natural environment.
Wood can be petrified in two ways both of which usually involve being buried in volcanic ash. This material decomposes due to exposure to water and nourishes wood with groundwater enriched with silica. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content. Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.
Get smart curated videos delivered to your inbox. Twitter Instagram. Thunder Egg. Home Geology What is Petrified Wood? How Does it Form? Where are their Locations? Share on Facebook. A rock with many perspectives. The geological record of mud deposits.
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