Did you know? Granite is a kind of igneous rock that is found on earth, but nowhere else in the solar system! It is formed when hot, molten magma slowly cools and turns to stone.
Did you know? Apatite is a common mineral found on earth. It is usually pale green or purple in color. It is used by humans to make some types of fertilizers!
Did you know? Gneiss (pronounced "nice") is a type of metamorphic rock that forms when a sedimentary or igneous rock is exposed to extreme temperatures and pressure. Gneiss rocks are recognizable by their alternating light and dark bands of minerals!
Did you know? Quartz is the second most common mineral in Earth's continental crust! It is hard and shiny. Humans use quartz to make lots of every-day items like soap, toothpaste, cell phones, watches, and more!