Cathedral Peak Granodiorite is a type of rock that is made up of different minerals like quartz, feldspar, and biotite. It's a very hard rock, almost like a big stone, that can be found in the Cathedral Peak area of Yosemite National Park in California.
Imagine you are playing with some toys, and you have a bunch of different toys like blocks, cars, and dolls. Cathedral Peak Granodiorite is like this, because it's made up of different things mixed together. Just like how you can build different things with your toys, rocks like this can be used to build lots of things too.
Cathedral Peak Granodiorite has a really cool pattern called foliation, kind of like the lines on a notebook paper. This happens when the rock is under pressure, and it changes shape. It's almost like when you squish a ball of Playdoh, and it gets squished into a new shape with lines on it. Scientists can study these lines and patterns to learn more about the rock and how it formed.
Overall, Cathedral Peak Granodiorite is a special kind of rock that is found in a specific place in California. It's made up of different minerals, and has a cool pattern because of how it was formed.