The metal in question is sodium. Normally, it isn’t transparent, but molten sodium hydroxide does turn transparent after it — well, sort of explodes.

In the Tesla Cybertruck reveal, we witnessed the infamous failure of Tesla Armor Glass. This video explores the concept of transparent metal glass, the reasons behind Tesla's creation of Armor ...

Transparent aluminum oxide (TAlOx), a real material despite its sci-fi name, is incredibly hard and resistant to scratches, making it perfect for protective coatings on electronics, optical ...

When combined with this technique, the metal not only becomes clear, but it remains just as strong as before. There are, of course, multiple possible use cases for a transparent metal like this.

Konica Minolta made an early technology showcase of inkjet metal mesh transparent conductive film in October 2014 at Display Innovation 2014 in Yokohama, Japan.