Dear Scott, Thank you very much for your inquiry and for your patience, I apologize for the little delay. Considering the images, this is a: A natural, unprocessed raw amber (Succinite), probably a Baltic Amber due to the color and texture. More information found here (http://raw-amber.com/natural-amber/about-raw-amber/). The niche for this sort of raw gemstones is very small, and there is no much examples of other auctions of similar products. However, the actual range of value ($) per grams is 13-15 $, which would make an estimated value, if authenticated, of between 70000 to 85000 $ (13 lbs). This piece is in great condition and there is no serious damage visible in the images provided. The provenance and origins are unknown. It's beyond the scope of an online photo appraisal to do more than give you what it could be worth if it were authenticated and deemed right by an expert on the work of this specific scope of time and familiarized with raw gemstones.
