Answer

How did ancient Egyptians cut a rock mountain into 3-ton stones without dynamites (sic)? Here's an ancient secret among quarrymen. That’s only passed down from father to son. You only use dynamite. If you plan to make gravel, not intact stones.

So ancient quarry men lit fires in a row on a bare rock surface.

They quench it with water and/or vinegar. They chip away the weakened material with diorite balls. It's a type of stone harder than granite.

The dolerite ball on the left was found inside the Great Pyramid along with that copper artifact.

They repeat the heating, quenching and chipping until they have a line of holes.

They inserted dried wooden wedges into the holes and poured water into the cavities. The wood absorbs the water and swells. Thus cracking a block. This would be trimmed down into a building block.

To trim the stones, the Egyptians imported copper from Cyprus. They drilled a line of holes in the stone. Then they inserted copper wedges into the holes and hammered them in a series. In one hole there would be two feathers and one plug in-between.

Modern quarrymen use diamond wire saws and water to cut through rock.