Gold has been used as money for many reasons. It is fungible, with a low spread between the prices to buy and sell.
Gold is also easily transportable, as it has a high value to weight ratio, compared to other commodities, such as silver. Gold can be divided into smaller units, without destroying its value, it can also be melted into ingots, and re-coined.
But gold is expensive, so more and more gold substitution comes out, tungsten, which with higher density than most other metals becomes the most popular material. Moreover, tungsten has a density of 19.25 grams per cubic centimeter at room temperature, almost the same as gold, which has a density of 19.30 grams per cubic centimeter at room temperature, so we usually call tungsten as tungsten gold.
Tungsten gold can be used for making gold counterfeits, such as tungsten gold coin, tungsten gold bar, tungsten gold ring, tungsten gold bracelet, tungsten gold necklace etc.