Elemental mercury (steel): Here is the shiny liquid that you probably performed with as a kid. When combined with other metals, it forms an amalgam. Silver-mercury amalgams are already used for dental fillings for nearly 500 decades. In spite of scare practices used by "holistic dentists" inside the eighties, which https://mediasocially.com/story5415216/the-2-minute-rule-for-diff%C3%A9rence-entre-le-m%C3%A9thylmercure-et-le-mercure