Placer Deposits: They're alluvial deposits fashioned via the normal erosion of gold-bearing rocks, allowing for fragments of gold to become transported by drinking water. The Actual physical Attributes of gold, like its density, permit it to settle in rivers and streams, often forming shell out streaks alongside riverbeds. 4000 bc. https://riverrpmid.popup-blog.com/38318964/shop-golden-gems-things-to-know-before-you-buy