Asbestos in first home?

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There was a large vermiculite mine in Libby, Montana that at one point, made up for approximately 80% of the world’s vermiculite supply. What most didn’t know, however, was that all impure vermiculite from this mine held asbestos crystals. In fact, miners harvested impure vermiculite since 1881.

That's an Internet copy pasta banded about.

A small contamination in a limited supply to relatively local distribution. Not UK.