[Rockhounds] Try this URL for my photos of Herkies

[Doug Bank]

They (generic Herkimer diamonds) can fluoresce due to oil inclusions. I have a few that do that. 

Doug

> On Oct 29, 2017, at 3:04 PM, <larryrush at att.net> <larryrush at att.net> wrote:
> 
> No fluorescence---the host rock is dolomite, very rarely some secondary
> calcite is seen...(don't know if the calcite fl....my ignorance should not
> surprise you, Axel!)