In 1971 Rick Lorenz, a well known realtor in the area, now with the Wells Group in Durango, Colorado, at the request of the owner at that time, had a professional mine and mineral appraisal done on the The Goldfinch Mine. That mining professional had many positive things to write about in his report. One significant item was an assay he had performed on some silver ore from right outside the mine shaft. Some of the ore assayed out at 12 ounces of silver per tonne (a tonne of hardrock is about one cubic yard). Below are some sample pages from that report:
Title page of the report is above.
Page below with very short description of the geology of this area.
Metalurgy tests of The Goldfinch sample ores on page below:
More metalurgy tests and commentary on page below:
More metalurgy information on page below:
Page below is a blowup of the page above. It has the kind of information that makes me want to mine.
Below are some recent samples I have photographed. It will take a while to get some recent assaying done on some of these samples, but I would expect high silver content and probably copper and some other metals. There is also very high molybdenum content in some of The Goldfinch ore, not included in these silver ore photographs.
Sample # 1
Sample # 2
Sample # 3
Sample # 4
Sample # 5
Sample # 6
Sample # 7
Sample # 8
Sample # 9
Sample # 10
Sample # 11
Sample # 12......I cut this sample in half with a lapidary saw and this is what the interior looks like.........
Sample # 13
Sample # 14
Sample # 15
The Honorary Goldfinch Mine Superintendent...........I fed him peanuts all summer because he was VERY loyal....................
There is obviously some copper in all of these ore samples also, the silver being embeded and mixed with quartz and calcite, giving the silver ore the bluish color, with, as I say, some copper, finely mixed in the rock, not large quantities of free silver visible without magnification..........But it looks like very GOOD silver under the glass.............................