How were the pyrimads made?

The pyramids of ancient Egypt were constructed with three basic materials. The use of granite was the most prevalent material. Huge blocks of granite were found in mines in the southern part of the Nile River. Large barges transported the rocks to the building sites of the pyramids. The outer part of a pyramid was composed of limestone. This stone gleamed in the sunlight and long after the Egyptian empire was gone, the limestone was basically ripped off of the pyramid. The interiors of the pyramid, especially in the room where Pharaoh's mummy lay were often lined with marble. Marble was used on the floors, ceilings and walls of the tomb room. Ornamental gold and silver and precious stones were also in the main tomb room.

Slate was also a material used in the pyramids.