Sh...............
I would have said spray paint the cracks, then paint it all and move in.
But a guy I've known 40 years - chippy, has just been diagnosed with asbestos-caused lung cancer. He's been given 2 months to a year.
The only asbestos he can remember was a job about 30 years ago where he replaced all the doors in a hotel - because they contained asbestos.
So no drilling , they just went into a skip for the council to collect.
The various types show up clearly under an "ordinary" polarised light microscope. Most of the crystals are "positively birefringent". Instead of looking anonymous grey/transparent, they make colours.
https://www.shutterstock.com/image-photo/plm-closeup-chunky-chrysotile-600w-1820369969.jpg
Curiously, I have a number of polarising microscopes. The guy with mesothelioma inherited a house a year ago, and it had some microscopes the guy used for a specific application. They need servicing, so they aren't worth much. They were on their way to the local dump so I got in the way.
If you get two sheets of polarising material - camera filters, old sunglasses, some phone screen covers, etc, and
cross them so no light comes through, then rotate the top one 45°, you'll get some light through and get a colour of some sort, like the pinkish purple in the linked photo.
Then put eg chrysotile (asbestos from asbestos-cement sheet) onto a clear glass that you put between the polarisers, and rotate that.
The colours show up, they move about but they're small - you'd need at least a strong hand lens to see anything. Most are ~ microns size so too small without magnification. Often the asbestos will have the stuff with larger crystals than the fine ones which do the damage, and you can see those.