North Bay Resources Inc (NBRI)

[Phatlander]

Dolphy, as I understand it, there are several types of specimen gold:
crystalline gold, foil gold, wire gold, dendritic gold, octahedral gold, leaf gold, quartz gold, to name a few. Additionally, from the Ruby Adams Vase page we learn that Tiffany's highly valued Ruby gold because of its greenish hue (Spanky had previously posted a lengthy explanation of how different colorations are achieved in gold). You can read more about that (Tiffany's Adams Vase) here:

http://www.northbayresources.com/ruby/LapidaryJournal_Nov'87.pdf

Here is a YouTube video featuring specimen gold nuggets:

I believe that it is because specimen gold is coveted for use in jewelry that gives it a premium value. I'm also learning a lot more about these things as I dig deeper into dd.
Here is a specimen gold jewelry site and GLTY:

http://www.minerskeepers.com/