Is it possible to make solid mercury at room temperature?

This is some variation on traditional dental amalgam (Amalgam (dentistry) - Wikipedia) which can be 50% to 70% mercury but when freshly made is like mercury, and gradually sets (hence can be molded and functions as a tooth filling). read more

Pure mercury is liquid at room temperature. However, mercury-containing compounds such as amalgams (mercury-containing alloys) and mercury sulfide can be made to be solid at room temperature. Or else solid mercury must be some kind of homogeneous mixture of liquid nitrogen and mercury. read more