Tremolite-Asbestos Presence in Roman Archaeological Site of Micia, Romania

This paper reports the first evidence of the presence of the mineral tremolite asbestos in Roman building materials from the Micia archaeological site (Romania), thus contributing to the understanding of the implications of ancient building materials. The Micia archaeological site includes both a fo...

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Main Authors: Rodica-Mariana Ion, Marius Gheorghe Barbu, Valentin Ioan Gurgu, Sofia Slamnoiu-Teodorescu, Anca Irina Gheboianu, Gabriel Vasilievici, Lorena Iancu, Ramona Marina Grigorescu, Elvira Alexandrescu
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Crystals
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Online Access:https://www.mdpi.com/2073-4352/15/5/430
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Summary:This paper reports the first evidence of the presence of the mineral tremolite asbestos in Roman building materials from the Micia archaeological site (Romania), thus contributing to the understanding of the implications of ancient building materials. The Micia archaeological site includes both a fort and a civilian Roman military settlement that was inhabited by both civilians and soldiers from various Roman troops. Over time, since the late 2nd century AD, the settlement has undergone significant reconstruction, especially after some fires. Tremolite asbestos is a non-flammable mineral that, due to its fibrous properties, was used in the past in building materials, although it poses health risks when inhaled. To highlight it, several advanced and highly sensitive scientific techniques are used in this work to discover the presence of tremolite asbestos and to examine its structure, composition, and morphology inside the investigated samples. Tremolite asbestos is typically white to gray or greenish in color, characterized by thin, needle-like fibers that can easily become airborne and inhaled. It is a crystalline mineral that usually forms long, straight, sharp fibers. Under high magnification in optical microscopy or in scanning electron microscope images, correlated with other performant analytical techniques (XRD, WDXRF, FTIR, Raman, BET, TGA), tremolite asbestos appears as elongated, slender fibers—often bundled or intertwined—with smooth or slightly striated surfaces.
ISSN:2073-4352