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>>黃金或鉑金的替代品
黃金和鎢的物理性質
黃金的密度是19.3克/cm3，它的熔點是1,947.5°F。而鎢的密度是19.25克/cm3，熔點是6,192°F。黃金和鎢的密度非常的接近。 鎢作為黃金替代品的優勢： 理論上講，鈾的密度是19.1g/cm3,差不多比鉛重70%，它可以用來做假銀幣。但是它有弱放射性，也沒有金重，所以用它做假金顯得不切實際。 接著人們發現鎢既環保又堅硬，最重要的是它的密度是19.25g/cm3，正好和金的密度(19.3g/cm3)相差無幾，重量也差不多。這些優點使得鎢成為比較好的貴金屬如金或鉑金的替代金屬。
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