Valec

I have no idea what crystals those could have been. However, I'd like to know, too. Sounds pretty interesting.

So, is triboluminescence dangerous in pyrotechnics?
I couldn't find much helpful information...
http://en.wikipedia....iboluminescence
http://chemistry.abo...aa060601a_2.htm
http://scienceworld....minescence.html
...doesn't really help.

Btww, last week I tried to ballmill a bit of self-made magnalium using steel balls (just a proof of concept experiment with little material). After about 30 seconds the milling jar started glowing for maybe half a second. Looks like fine magnalium shouldn't be milled like that...

I think the light produced by tape ist harmless. As far as I know, it is produced by so called Triboluminescence and it's cold light, like it can be produced by luminol (in that case, chemoluminescence). Triboluminescence also occurs with sugar crystals I heard; you can put sugar crystals in a coffee grinder and watch them in the dark, and sometimes you can see a bit of light output (which is what I was told - I haven't tried so far).
So, light isn't always produced by sparks and thus not always dangerous IMO.

You could try "ChemEtikett", a free software (written by me) for printing labels for chems.
It's avaible at www.tofoq.de (Sorry, the English version of the page is outdated, but I suppose the German version is understandable, too).
I'd like to get some feedback if it works or if there are any problems.
The last build of the program is dated 2004, so I might be rewriting the code if there are any problems.

As everyone has said, yes. However it will naturally be a bit less bright and will not fly so far. One of the things I love about Ti is its ease of ignition, you can even mix it into willow stars and it will burn.

Additionally, depending on particle size, Mg gives sort of a soft crackling effect (well not crackling really, but sounds quite nice).
Try adding some cheap coarse Mg to the break charge of a shell .

Well, i would like the following:
ferro-titanium
silicon
titanium (different grades)
potassium perchlorate
antimony trisulfide
bismut trioxide
parlon
nitro cellulose
and timefuse would be nice, probably also cheap visco.