What does chrysotile mean?
Chrysotile is a naturally occurring fibrous mineral belonging to the serpentine group, composed of magnesium silicate hydroxide and better known commercially as white asbestos. It accounts for the overwhelming majority of the world's asbestos production and has been used for over a century in cement roofing sheets, pipe insulation, brake linings, gaskets and fire-resistant textiles, prized for tensile strength, flexibility and resistance to heat. The name derives from the Greek chrysos, 'gold', and tilos, 'fibre', a nod to its silky, golden-hued strands. Although its curly fibres are generally regarded as somewhat less dangerous than the straight needle-like fibres of amphibole asbestos such as crocidolite, chrysotile is nonetheless a recognised human carcinogen, and its use has been banned or heavily restricted in much of the world. Today the word appears mainly in geology, occupational-health literature and legal proceedings concerning asbestos exposure and remediation.
nounA fibrous silicate mineral of the serpentine group, magnesium silicate hydroxide, and the most commercially important form of asbestos, commonly known as white asbestos.
- The serpentine-group asbestos mineral Mg₃Si₂O₅(OH)₄, the dominant commercial form of asbestos used in cement, insulation, brake linings and textiles.
"The old factory roof was sheeted with corrugated panels of chrysotile."
"Geologists identified the pale vein as chrysotile rather than amphibole asbestos."
"Because its fibres are curly and more soluble in lung fluid, chrysotile was long considered less dangerous than blue or brown asbestos."
Rarely pluralised except in geological texts referring to multiple specimens or occurrences of the mineral.
"The thin section revealed several distinct chrysotiles within the serpentinite body."
Chrysotile's very name means 'gold hair' in Greek — the ancients wove the shimmering fibre into cloth, never imagining it would become the world's most abundant asbestos.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of chrysotile
Chrysotile comes from the Greek chrysos ('gold') combined with tilos ('fibre'), so the name literally means 'golden fibre', reflecting the mineral's silky appearance when first described in the nineteenth century. The chrys- element is shared with other Greek-derived words such as chrysanthemum ('gold flower'), chrysalis ('gold sheath' of a pupa) and chrysolite (a name for the gemstone olivine). The term entered scientific nomenclature through German mineralogical writing before becoming standard in English geological vocabulary.
How chrysotile is actually used
Strictly a technical and industrial term, found chiefly in geology, occupational health, regulatory documents and legal contexts rather than everyday conversation. In industry it has long been referred to by the trade name 'white asbestos'. Connotations are now largely negative: the word evokes health hazard, litigation and remediation, even though chrysotile remains legally used in some countries.
Easily confused with chrysotile
Crocidolite is the rarer, far more hazardous blue asbestos of the amphibole group, whereas chrysotile is the curly-fibred serpentine 'white' asbestos.
Chrysolite is a golden-green gemstone (a name historically applied to olivine/peridot), not an asbestos mineral; the shared Greek root invites confusion with the similar-sounding chrysotile.