[Rockhounds] Trip Report - Denver Area

[Earl R. Verbeek]

Hi Axel,

To give a partial answer, if Kreigh was where I suspect, a large roadcut
through the Dakota hogback, with oil-stained sandstone on the north side
and molybdenum minerals (ilsemannite) on the other, then yes, the sandstone
fluoresces quite nicely in a range of yellow and orange hues.  Very
interesting material...

             Cheers-   Earl

P.S.  It's too early in the morning for me to spell ilsemannite correctly. 
Please forgive if I blew it.

On Sat, 16 Aug 2008 11:16:39 +0200,  wrote:
> Thanks for the report, Kreigh!
> 
> Have you looked at the asphalt and surrounding host rock under UV?
> There's a possibility of fluorescing "earth-waxes" being there ;-)))
> Yeah, I know... I have a one-track mind...
> 
> Cheers
> Axel
>