This is an American Classic - Mary Ellen Jasper from near Hoyt Lake, on the Mesabi Iron Range in northern Minnesota. The is the RED variety of Mary Ellen Jasper. Mary Ellen Jasper is actually a Stromatolite jasper and is approximately 1.8 billion years old. They are 2 basic types. One has a banded appearance with layers and the other shows more vertical patterns. 's the scientific info on each: The banded or laminar variety is stratiferia biwabikensis. The more vertical or digitate variety is collenia undosoo. These represent 2 types of algea forms. Both are Early Proterozoic, Precambrian, Biwabik Formation. Now to the lapidary info...This is really hard stuff and takes a high polish. Seldom seen in rough at this price!! I bought about a ton from an old stash and can offer it at a REAL BARGAIN! This lot weighs 4.50 pounds. See photos. This piece was photographed while wet to show colors. DON'T MISS THIS ONE!!! Buyer to pay $11.00 shipping/handling. COMBINE WINS TO SAVE ON SHIPPING!! See my other auctions for more cutting rough. Combine auctions to save on shipping. Email any ?? Thanks for looking and HAPPY BIDDING!! PLEASE STAY TUNED TO ROCKMAN69 IN THE WEEKS (AND MONTHS) TO COME!! I HAVE TONS OF NEW (OLD) MATERIALS TO BRING TO EBAY SOON! Rockman69 is an ebay powerseller, so bid with confidence!!