Suspect it was orignally added as a Silica (silica is next to silver in the drop down menu) mine and then changed to Silver. But the photos were uploaded before the change, so they have the incorrect silica description as part of the reference.
There's no way to fix that I'm afraid; the mine refkey value (that forms part of the web address) doesn't change when the mine name or details are updated.
But any subsquent image uploads for this mine will have the correct silver description as part of their reference.
I hope that made sense!
my orders are to sit here and watch the world go by