The worst ones are… radioactive, or asbestiform. So…

Kyanite is harmless but nasty.

We once found a group of bio students on a field trip.

We pranked up their van and took incriminating pictures.

I notice how geologists are not even in the conversation.

It’s because we are all outside playing in the dirt.

Library (the best indoor 3rd place of all time), and outdoors.

Am science, can confirm