A dodo egg is a renewable food item that is randomly left behind by a dodo bird. Dodo eggs are large and oval in appearance with a light blue shell with a wavy pattern or darker areas.
As a result, rocks form quickly and mineral crystals are very small. Rhyolite is one type of rock that is formed when lava cools. It contains similar minerals to granite. However, as you can see in Figure 3.21, the mineral crystals are much smaller than the crystals in the granite shown in Figure 3.20.
Rocks make up the earth's crust. Many rocks are not solid, such as magma, soil, and clay. Different mineral deposits can be found in related rock formations, providing use by estimating what minerals rock formations may contain. The term rock collection is usually misused for mineral collection.