Unique and special collectible fossils
Unique and special collectible minerals
Unique and special collectible fossils
Unique and special collectible minerals
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Petrified wood, Xylopal, ± 21 x 17,4 x 1.6 cm thick, from a coniferous tree from the United States.
Its mineralization in red jasper gives it a beautiful coloration.
* About 225 million years ago, northern Arizona had a tropical climate that supported a vast coniferous forest. Most of these trees were of the species Araucarioxylon arizonicum, a type of conifer that grew up to 60 m in height, with a trunk up to 15 m thick.
Much of the petrified Araucarioxylon wood found in Arizona is known for its rainbow coloring with vibrant hues of reds, yellows, and purples. While the silica that replaced the original wood is clear, other minerals, particularly iron oxides, provided the color to the fossilized wood.
Upper Triassic,Chinle Formation
Sur de Adamana, Arizona, EE. UU.
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