4steps from the big bang
41things can go into it
limestone
NaturalMineral
Most limestone is made from the shells and skeletons of ancient sea creatures.
First appearedDate not yet known
Made Of
Everything is made of something.← What it takes
What it leads to →
Most limestone is made from the shells and skeletons of ancient sea creatures.
From the big bang to limestone
The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.
big bang13.8 bn yrs ago
Hhydrogen13.8 bn yrs ago
star13.6 bn yrs ago
Ccarbon13.6 bn yrs ago
limestonedate unknown