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Bead Supplier
Bead Supplier resources on http://www.beadsinbulk.com include information about Bead Distributor, and more. The best bead wholesaler on the internet.
Bead Supplier : Articles
 The earliest known workings of significant size were those of the pre-Hittites of Cappadocia in eastern Anatolia. Silver is generally found in the combined state in nature, usually in copper or lead mineralization, and by 2000 BC mining and smelting of silver-bearing lead ores was under way. Lead ores were smelted to obtain an impure lead-silver alloy, which was then fire refined by cupellation. The best-known of the ancient mines were located at the Laurium silver-lead deposit in Greece; this was actively mined from 500 BC to AD 100. Spanish mines were also a major source. These New World mines, much richer in silver, resulted in the rise of South and Central America as the largest silver-producing areas in the world.
| Bead Supplier info:
The mixing was accomplished by tethering mules to a central post on a paved patio (hence the name of the process) and compelling them to walk in a circle through the mixture. The silver was gradually converted to the elemental state in a very finely divided form, from which it was dissolved by the mercury. Periodically, the mercury was collected and distilled to recover the silver, and this was subsequently refined by cupellation. Glass can be colored by dissolving in it metallic oxides, sulfides, or selenides. See also Beads and Jewelry Supply, and pages related to Bead Supplier. |
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