Wood and Mineral Art Citrine & Wood

Mineral Art

IMG_4832_3_4_fusedWood & Fossil Specimens

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Wood Spire and Citrine Specimen

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How is Petrified Wood Formed?

Petrified Wood is created by…

Petrified Wood is a fossil in which the organic remains have been replaced by minerals in the slow process of turning to stone. This petrification process generally results in a Quartz Chalcedony mineralization. Special rare conditions must be met in order for the fallen wood to be transformed into precious Fossil Wood or Petrified Wood. In general, the fallen trees get buried in an environment free of oxygen (anaerobic environment), which preserves the original tree structure and general appearance. The other conditions include a regular access to mineral rich water flowing through the wood, replacing the organic tree structure with inorganic stone. The end result is Petrified Wood, a tree, with its original basic structure in place, replaced by stone.

Elements such as manganese, iron, and copper in the water/mud during the petrification process give petrified wood a variety of color ranges. Pure quartz crystals are colorless, but when contaminants are added to the process the crystals take on a yellow, red, or another tint.

Following is a list of contaminating elements and related color hues:

carbon – black
cobalt – green/blue
chromium – green/blue
copper – green/blue
iron oxides – red, brown, and yellow
manganese – pink/orange
manganese oxides – blackish/yellow

photo’s courtesy of RockOn Omaha

http://www.madagascarminerals.com/cat-petrified-wood-forest.cfm

https://en.wikipedia.org/wiki/Petrified_wood

http://www.rockonomaha.com

How Orthoceras Fossils are Made

How are Orthoceras Fossils Formed?

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Orthoceras (straight horn )is an extinct nautiloid cephalopod.

The Orthoceras ranged in size from a few inches in length to over six feet. They could swim as well as crawl on the ocean floor. By filling the chambers in their shells with air they could float through the seas propelling themselves by squirting jets of water. As they died their shells accumulated upon the ocean floor, then covered by sediments they transformed into stone over the ages.

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You can find Orthoceras Specimens from our online rock shop
You can also visit or Olde Towne location in Bellevue, NE

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