With local council submissions and approvals and trucking in the sand, I'd say about 3 years.
Many Years. Many Years.
1 million years
1 million+ Years to be a diamonds... :/
1.
One Billion!
it takes a delta to form 100 years or more
how many hours does it take to drive from Ft. Lauderdale to Daytona Beach
There are many types of fossilization. Some take a surprisingly few number of years, and others occur over periods of millions of years.
It could take minutes or thousands of years, depending on the rate of cooling.
The average growth rate is 0.13 mm a year
Erosion or the process of Rocks rubbing each other by the wind or water then they form tiny bits of rock. The process take tousands and thousands of years.
Probably a few million years. Most likely many years, due to Evolution. :P