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This is a very nice gem quality greenstone that has several areas of native copper showing. Lots of areas showing nice greenstone turtleshell patina. This is from the cliff mine. A very fine unusual specimen as it is rare to see copper mixed with gem greenstone. It weighs a nice 6 grams.
Item #E151 Price is $60 SOLD
This is a very nice gem quality chlorastrolite greenstone found at the Central Exploration mine before the mine dump was removed for road grade material. I was one of the last people to be able to hunt in the mine dumps before it was ground up and now access is denied to all rock hounds. I hated to see this mine dump disappear on us. The whole specimen has been ground and polished and it has a flat bottom. It measures 11/16" x 7/16" x 3/8", and it weighs 4 grams.
Item #B363 Price is $90
This is a nice combo of greenstone and native copper. The tip of the nugget is a nice greenstone, with only one side of the greenstone being polished. The remainder is native copper, and after looking at it under a scope, the faces of the copper are all naturally worn and smooth. Sample is from central x mine dump, which no longer really exists as it was crushed for road fill which is such a waste. It's size is about the size of your little fingernail and weighs 1 gram. A very unusual sample!
Item #B397 Price is $150 SOLD..
This is a rounded shaped greenstone from delaware michigan area. There are 4 spots that look to be gem quality while most of this sample has just smaller molted spots. 3 of the 4 gem spots has a speck or more of copper in them. The back side shows a valley shape with the sides being higher than the center. The squared end is also polished. This sample weighs 23 grams.
Item #B399 Price is $95