Rocks and stones are natural formations of minerals that can be used to create the most primitive [technology](technology.md). Stone age was the first stage of our civilization; it was characterized by use of stone tools. Rock [nerds](nerd.md) are called geologists.
Rocks are pretty [suckless](suckless.md) and [LRS](lrs.md) because they are simple, they are everywhere, free and can be used in a number of ways such as:
- For writing, some can be used as a chalk, some may be used to carve into, which makes rocks an extremely durable storage for both [digital](digital.md) and [analog](analog.md) [data](data.md) -- thanks to this we have records of very old [history](history.md), see also [RCBD](rock_carved_binary_data.md). A dust from some rocks can also be used to make dye to paint or write with.