SOLD
5,000.00USDto floor+ buyer's premium
This item SOLD at 2008 Jan 20 @ 22:10UTC-06:00 : CST/MDT
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<B>SILVER & COPPER 'HALF-BREED'</B></I><BR> <I>Silver Cliff Mine, Keweenaw County, Michigan</B></I><BR>Unique to the Upper Peninsula of Michigan and corresponding areas of Canada across Lake Superior are masses of silver and copper referred to as 'half-breeds'. These consist of crystalline intergrowths of these two metals, usually of a reniform habit except when found underground as is the case here. This example shows several medium-sized silver crystals partially over coated with crude copper crystals. The luster grades from shiny, bright, water-white on the silver, then abruptly shifting to the copper with a buffed saddle leather look. There is a small amount of quartz associated. The piece measures 2 inches by 1 ¾ inches by 2 inches. It is accompanied by a label from Don Olson Minerals. In addition it bears a collection number of 108AT from the Ed David Collection. In fine condition.<BR><BR><b>Shipping:</b> Requires 3rd Party Shipping (<a target="_blank" href="http://www.heritageauctions.com/common/shipping.php">view shipping information</a>)
Auction Location:
1518 Slocum Street, Dallas, Texas, United States
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Buyer's Premiums:
| From (Incl.) | To (Excl.) | Premium |
| 0.00 |
999.00 |
22.5% |
| 1,000.00 |
Infinite |
22.5% |
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