Trying to detect poisonous Beryllium Oxide content in electronic components 

Hi folks. I’m experimenting using a cheap diamond tester to determine the difference between safe alumina ceramic, and poisonous BeO ceramic, based on differences in their thermal conductivity. This will need further work to get more consistent results, and I’ll need to find some other known BeO samples to test with. I was getting fairly consistent results before I got on camera though, which is often how it goes. I’m wondering now for instance if thinner pieces naturally will read higher on the scale? If I make progress I’ll follow up with another video.