A kind of metal · also called Wolfram

About
Tungsten is a dense metal that packs a large amount of weight into a very small volume.
Tungsten has a density of roughly 0.70 pounds per cubic inch (19.28 grams per milliliter), making it substantially heavier than common metals like lead or iron. Its density rivals that of pure gold, meaning small objects made of this metal take up very little space for their mass. In nature, it forms within ores such as wolframite and scheelite rather than pure metallic deposits. Because of this high mass per volume, even a small handheld sample feels unexpectedly heavy.
From Wikipedia
Tungsten is a chemical element; it has symbol W and atomic number 74. It is a metal found naturally on Earth almost exclusively in compounds with other elements.
Read more on Wikipedia →Text from Wikipedia’s “Tungsten” article, CC BY-SA 4.0.
One cup weighs
10.1 lb (4.56 kg)
Quick answer
One US cup of tungsten weighs about 10.1 pounds (4,562 grams). That is roughly as heavy as a standard bowling ball concentrated into a single kitchen measuring cup.
Typical figures, the same ones every comparison on the site uses; real ones vary.
Compare it
Next to anything: a person, a car, another metal.