<<Where did you get those black light, key chains ? >>

Yeah, what he said...

Your best bet is Ebay, or do a froogle search. UV photon lights are expensive as heck. Or you could make your own easily too. ( Granted it takes time to make them, and they're pretty cheap if you buy in bulk. )

Yeah and watch out for the coloured ones like pink, they actually have pink liquid in side and it will stain but the blue ones tend to have no colour in them and don't stain.

I recently came across an interesting lense guide. Thought you might be interesting.

www.coopersafety.com/departm...ses.aspx .

It's a link off this page and has detailed descriptions on a long list of common lense shades.

Magn. lenses also mag. the light , that's what a visual image is. Ever cook a cricket on a sunny day with one ?
And clear lenses do zilch, zero , na-da, to stop UV rays, unless specificaly made for that purpous, and they MUST be marked as such . Even then they do very little. That's why they don't make "clear" sun glasses
Safty glasses can be for protection from . sparks, dust, chems, or UV. Or any combo . So freely giving advice on the subject, with your very limited experance of low wattage bulbs shinning on rocks, is missplaced, and inapproaite.
one can make suggestions, offer ideas, share experance, etc. But when it comes to the absaluts of offering " factual" statments concerning safty you must know what you're talking about. Ohterwise people could get hut, based on your advice.
No protection is needed from the very low watt. you are using. As does not the home black light.
And if you were using a UV blocking lenses, you wouldn't be able to see the fluoescence in the rocks.

,Safty is an issue we often deal with in the DIY tribe, for obvious reasons. Greatest among them is the neophite that is seeking basic knowlage. They may assume that the person offering the safty advice knows what they're talking about, even when they don't. And we have a lot of begginers comming here to learn to be DIY'rs. The outcome for this bad advice can lead to a very bad day. It's one thing to screw up a project based on bad advice, quite another to be injured, possably severly.
I'm sure many here are aware of my "Big hammer" ( don't get too excited ladies !), approuch to safty issues. But after 30+ yrs. of watchfullness, I can proudly say that none of my people have ever been seriously injured, and only a few have had minor injuries.
Better to bruse an ego, than loose an Eye.
So to anyone offering advice about safty, or projects with safty concerns, stop and think , " should I realy suggest this is right, concidering the possable concaquence ? ". And not make statments like,
"glass or plastic lenses are plenty of protection for your eyes. Cheap polycarbonate safety glasses are lenses are great." They are not, they're only cheap.