Geologists and civil engineers classify rock fragments based on their size. A small piece of rock may be gravel (2-84 mm in diameter), a cobble (64-256 mm in diameter) or a boulder (>256 mm in diameter).
If you mean name given to molten rock then the answer is magma
Stone
Rochelle is a female given name of French origin. It comes from the word rocher, which means "rock". It means "little rock".
The name for a small rock added to letters to make a ton is a "pebble."
what is another name for a small rock not a pebble not a stone
"The Rock" was the name given to the prison island of Alcatraz in San Francisco bay. It is also used as a name for Gibraltar.
Zimeus
lava
Lava .
Small river.
pebble
Rockhopper Penguin.