I think they are holes for wedges used to mine slabs of limestone, marble and such.

Yes, they're holes chiseled in the rock by Egyptian stone cutters a long time ago, but what happens next?

Cut along dotted line?

Close, split on the dotted line, but how?

Ice?

Sand and rope.

Nope, wood. Fill with sun dried wood and add water, rinse-repeat, swelling wood will split the rock.

I was thinking cutting once the stone was on site.:smack:

Saw a Discovery-type thingy where they showed it the Egyptians mighta/coulda done it that way (the sand and rope thing).

Crooked thinking.:neutral:

I watched a programme on TV last night which showed operations at a Canadian sandstone quarry.
Vertical holes were drilled in the rock and expanding mortar poured into them.
Within two or three days manageable sized chunks of rock just fell away.

...aaand he just buried his chisels.

Patient and steady.

I had the opportunity to do that with a relatively small boulder, and only 5 wedges. Or feathers and wedges, or whatever they are called. It was fun. Drilling the holes took the longest time, and I had power tools.

"Let the hammer do the work."

What is this?

Attachment 66170

Clue: Related to another (current) thread.