There are no markings or hallmarks that are specific to white gold as opposed to yellow or rose gold. Jewelry markings or hallmarks typically include the metal stamp or carat weight, the manufacturer, designer or any trademark.
MineListings.com and Gold Rush Expeditions have listings of gold mines for sale in the United States. Gold Rush Expeditions only lists mines for sale in the Western United States, according to the company's website.
The most effective way to tell if a ring is real gold is to take it to a jeweler for inspection. There are also some simple tests that can be done at home.
To clean white gold, soak it in a solution of mild dish soap and warm water, and scrub off dirt with a paste of baking soda. Rinse the gold with clean water, and buff it with a microfiber towel.
It is possible to have a gold ring electroplated with platinum. In this process, the gold ring is dipped into a solution containing a dissolved ion of platinum. An electrical current is applied, causing the platinum ion to attach to the gold ring in a very thin coating.
Silver is a pure metallic element, and white gold is an alloy created by combining gold and a white metal. Common metals used in the creation of white gold include nickel and palladium.
White gold is an alloy of gold and other metals, such as silver or palladium, while platinum is an almost entirely pure white metal. In a natural state, platinum has a much whiter color than white gold. However, most white gold is plated with rhodium, which makes the co...