20000kg
A stone block weighed as much then as it does today. Please be more specific.
you weigh 12 stone
with or with out
depends on the size of the cup
150 grams 4 to 6 oz.
There is 14 lbs in a stone.
Lime stone varies from crumbly to almost as hard as flint, depending mostly on how much weight was above it when it was being formed.
It would weigh 10kg.
about 685 pounds dry
Just the short block, about 300lbs.
about 800