mflugher wrote:Sorry but search ali baba a little better, there are ASE replicas for sale too...
...just learn how to use your scale and calipers (I can't think of the right name for the tool but it slides open and shut and has a dial to measure to the 1/10th mm... sorry)
68Camaro wrote:mflugher wrote:Sorry but search ali baba a little better, there are ASE replicas for sale too...
...just learn how to use your scale and calipers (I can't think of the right name for the tool but it slides open and shut and has a dial to measure to the 1/10th mm... sorry)
Caliper... you've got it right.
Micrometers generally twist closed rather than slide, and generally measure to another decimal place better than calipers.
brian0918 wrote:$5.52 shipped from ebay: http://www.ebay.com/itm/1kg-0-1g-500g-0 ... 0785316945
...
68Camaro wrote:To precisely duplicate the specific gravity of silver, you would need to create an alloy (or laminate) of the right precise proportions of two other cheaper metals that have specific gravities on either side of silver.
This can be done, for example, with lead/molybdenum, or tungsten/copper, (I just did the calcs) but the proportions would have to be exact to at least 3 places. In those cases, x-ray would be the best quality control choice. However, you're not going to get these cheap copies described above made of these alloys for less than $5-$10 each. Tungsten and Moly aren't cheap, nor are copper or lead, not the work required to alloy or laminate. They wouldn't (yet) be than much cheaper in the final form than silver.
The cheapies are probably made with iron/lead, or some other combo. They would either be magnetic, or of the wrong dimensions.
I'm not sure that a really high quality, non-magnetic, density-checked counterfeit could be made that would be cost-effective.
Anyone want to prove me wrong?
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