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Fig. 8 | Heritage Science

Fig. 8

From: Geoenvironmental investigation of Sahure’s pyramid, Abusir archeological site, Giza, Egypt

Fig. 8

Microphotographs under the digital microscope for the construction materials of Sahure's pyramid. a and b Core stone, grains of quartz admixed with calcite, fractures, laminations, and microcracks are detected. c and d Unweathered casing limestone is a very white stone, microveinlets filled with calcite and quartz are observed, and comb texture is observed in some microveinlets. e and f Weathered casing limestone of the pyramid with clear irregular pore spaces present in the carbonate matrix of the stone and comb texture is observed. g and h Sample of mortar with a significant amount of microfossils and fossil fragments are observed in the carbonate samples and in the groundmass, and several irregular interparticle pores are detected in the mortar. Legend: Cal (calcite), Qz (quartz), and Ba (basalt rock fragments)

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