blue asbestos
Noun
Meaning
blue asbestos (uncountable)
(mineralogy) Crocdilite
Synonyms
Examples
The first two are blue fibrous minerals, with glaucophane occurring in blueschists and crocidolite (blue asbestos) in ironstone formations, both resulting from dynamo-metamorphic processes.
World War II gas masks contained blue asbestos in their filters.