Amazonite has a soft green to blue green color, often with thin white streaks interlacing the green It forms blocky prismatic or tabular crystals with angles that are not quite ninety degrees

The formation of Geodes takes place over millions of years and involves several different geological processes Hollow Rocks So, let’s start at the beginning: how do you get a hollow rock with lots of sparkling crystals inside

The Triassic Period begins the Mesozoic Era The mass extinction event at the end of the Permian period ended 90% of the species on earth at that time

The Mesozoic Era begins at the end of the Permian Period Mass extinction had eliminated most of the species of life that had existed throughout the Paleozoic Era

Sedimentary rocks are classified as clastic, chemical, and organic sedimentary rocks The rocks in each group form by completely different processes

The Paleozoic Era is seen in the fossil record as an explosion of life forms The Cambrian Period marks the beginning of an era with thousands of new life forms in the ancient seas

Igneous…ignite And that’s just what happens when igneous rocks form