%0 Journal Article %T Iron-Rich Red Clays on the Turin Shroud: Optical Microscopy Studies and SEM-EDX Analyses %A G¨¦rard Lucotte %A Thierry Thomasset %A Thierry Deroin %J Archaeological Discovery %P 66-81 %@ 2331-1967 %D 2024 %I Scientific Research Publishing %R 10.4236/ad.2024.121004 %X We have explored by optical microscopy and scanning electrons microscopy coupled with energy dispersive X-ray fifteen particles located in a sample of the Face area of the Turin Shroud. They have the following peculiarities: they are alumino-silicate clays, with an elevated content (up to 56%) of iron; their sides are comprised between 1.5 ¦Ìm and 19 ¦Ìm; their forms are rounded or more elongated, but more often with angular outlines. When observable, their colours are red or red-brown. All these particles have a little quantity of the phosphorous element (up to 5%) in their compositions. The biggest ones show some morphological heterogeneity on their surfaces, suggesting that they are chipboards of some micro-organisms. %K Turin Shroud %K Face Area %K Red Clays %K Optical Microscopy %K Scanning Electron Microscopy %K Energy Dispersive X-Ray %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=130677