Why not just filter out the UV (black) light at the display window, since
the minerals' fluorescences will be in the visible range?  You "might
could use" the same type of UV screening used for windows and light
sources in galleries.

John Scott, NY Conservation Center, NYC

On Tue, 18 Jul 1995, Debbie Herren wrote:

> We are planning to open a children's museum in the coming year and are
> working on displays for many hands on activities.  One display we would
> like to be able to show is a black light on minerals.  We will have two
> activities pertaining to minerals so we feel this would be an
> enhancement.  We have considered a recessed area so that the children are
> never able to look at the light, no matter what position they put
> themselves into, but still see the minerals.  Does anyone have expertise
> in this area or suggestions?
>
> Debbie Herren
> Museum
> University of Arkansas
> Internet: [log in to unmask]
>