Mineralogy of Abu Rowash pyramid : Egypt

Field, microscopic and X-ray investigation of blocks of pyramid constructed Abu Rowash were performed. Investigation showed the pyramid is constructed on specially prepared hill where slopes are cut in form of steeps and blocks constitute only the cover. Mineralogy and petrograpgy as well as X-ray examination confirmed the use of gypsum mortar for fixation of blocks. Moreover examination document that blocks used for pyramid construction are of other structure and texture than limestones constituting the core of pyramid.