I tried to melt some small rocks today:
On the first picture you can see how the rock looks before and after the melting procedure. I found interesting, that if you operate the torch after it was not used for some time, you can not see the flame on the torch the first minute or so. But the flame IS there. At first I figured that the flame just went out and put the torch near my ear to see if I can hear the gas flow
I will never do this again

Burned some hair. After a minute, the flame becomes visible with orange and blue colors

I will make a short video with burning/melting stuff this weekend.
Thanks,
Jetijs