Imagine our planet 200 Million years ago! The era of the first dinosaurs and the first conifers, the ARAUCARIAS, which succeeded giant ferns. The Rocky Mountains, in North America, did not exist yet, and the Alps were not going to rise up for another 140 million years !: Immensely powerful volcanoes belched out their ashes into swamps where some of the big trees were lying after having been torn from the surrounding mountains by various cataclysms. These trees were then immersed in a silica-rich mud: molecule by molecule, the silicon dioxide penetrated the logs, turning them into quartz-trees with the colors of ice and fire. Much later, this whole region rose up and is now 6000-feet high, at the heart of the Arizona Rocky Mountains. Nearly all the fossilized trees are protected in the "Petrified Forest" National Park.