All we'd need to do is tunnel down who knows how far through solid granite.
"You're talking about penetrations of 150 to 200 feet in solid granite."
The southern tip and the center of the island are virtually solid granite.
"And all this solid granite ought to be running in fusion."
"At full power, there's enough charge to burn through five yards of solid granite a second."
The walls are solid granite, up to six feet thick.
The road turned sharply where the stream had struck a wall of solid granite.
The back is solid granite, but the front has ornamentation.
How the Egyptians worked the solid granite is still a matter of debate.
It would be of solid granite, quarried on the site.