Vermiculite

So, but we're gonna talk about Libby, Montana.

So this story traces back to 1919 when companies first started mining vermiculite ore in Libby, Montana.

Vermiculite is a naturally occurring mineral with heat-resistant properties, so it's a form of asbestos.

Um, the two minerals sometimes develop alongside each o- sorry.

Vermiculite develops alongside asbestos and sometimes is considered asbestos.

They have the, they form under the same conditions.

Um, so there was asbestos that contaminated the vermiculite deposit.