the.com/rock
the ancient hard drive of Earth, recording four billion years one stubborn mineral at a time
means A solid mass of mineral matter forming part of the Earth's surface, or any large stone broken from it.
from From the Old English 'rocc' and Old French 'roque,' tracing back to a Late Latin 'rocca' of uncertain origin — the word itself is as mysterious as the deep time it names, with no agreed-upon parent. Curiously, the verb 'rock' (to sway) is a completely separate word, from Old English 'roccian,' so the stone that never moves and the cradle that always does are strangers sharing a spelling.
oldest knownAustralian zircon crystals date back 4.4 billion years
slow rainsome space dust settles into seafloor rock as fine sediment
living rockstromatolites are stone built by ancient bacteria
weighta cubic meter of granite weighs over two tons
recyclersthe rock cycle melts and reforms stone endlessly