This morning we were reading about the Great Pyramid at Giza. It said what the outer layer of stone was made of, but it said nothing about the inside! So I researched, and here goes:
The main part of the Pyramid was made of Limestone blocks approximately wheighing 2.5 tons each! This Limestone probably came from quarries nearby.
The Pharaoh’s burial chamber was made of Granite, a hard, strong rock probably used to bear the great wheight of the Pyramid.
The outer layer was a very pure, white limestone which was floated and dragged from across the river. Once on the Pyramid, this stone was smoothed and polished to a beautiful gleaming white.
The photos above show a limestone mine in southern france. Dad took a few photos while we were there.