A fibrous silicate mineral called actinolite was discovered during the drilling of the access gallery in the granite, the Federal Roads Office (FEDRO) said in a statement.
https://www.swissinfo.ch/eng/asbestos-found-during-gotthard-road-tunnel-works/48121632
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.swissinfo.ch/eng/asbestos-found-during-gotthard-road-tunnel-works/48121632
Asbestos found during Gotthard road tunnel works
www.swissinfo.chMiners working on the construction of the second Gotthard road tunnel have discovered asbestos-like mineral deposits.