Because when you discover an artificial element with a high atomic number, you generally only discover a few atoms. This means that you cannot tell which colour the element is. Darmstadtium is the same.
Darmstadtium has not uses.
Darmstadtium is not magnetic.
Darmstadtium is a metal.
Darmstadtium has no uses.
It is supposed that darmstadtium is a solid metal.
Darmstadtium has no uses.
Darmstadtium has no uses.
The texture of darmstadtium is not known.
The appearance of darmstadtium is not known.
Darmstadtium has no uses.
Darmstadtium is not a commercial product.
It is supposed that darmstadtium is a solid metal.