Marble and granite are excellent choices, with their beautiful veins and high-gloss shine, but they’ve been ubiquitous in homes for decades. Limestone and travertine are both natural rocks with ...

In the desert areas of Namibia, Oman, and Saudi Arabia, research work has revealed unusual structures that are probably due to the activity of an unknown microbiological life form. Unusually small ...

Mysterious tunnels in desert rocks may be the work of unknown microbes, hinting at a hidden world inside marble and limestone ...

However, quartzite is a high-end, high-cost natural stone like granite and marble. In addition, due to its weight, ...

Unusually small burrows, i.e., tiny tubes that run through the rock in a parallel arrangement from top to bottom, were discovered in marble and limestone of these desert regions. The paper is ...

Marble sample from Namibia: Starting from two crevices filled with light-colored crustal limestone, the tubes have grown downwards in a parallel arrangement. Credit: Cees Passchier Professor Cees ...

Unusually small burrows, i.e., tiny tubes that run through the rock in a parallel arrangement from top to bottom, were discovered in marble and limestone of these desert regions. "We were ...