The pyramids were covered in polished white limestone that reflected the desert ... the plundering of the pyramids' cladding stones began during the reign of Pharaoh Tutankhamun, between 1336 ...
Phys.org on MSN13d
Unusual desert rocks suggest unknown microorganism that uses marble and limestone as a habitatUnusually small burrows, i.e., tiny tubes that run through the rock in a parallel arrangement from top to bottom, were ...
Mysterious tunnels in desert rocks may be the work of unknown microbes, hinting at a hidden world inside marble and limestone ...
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