Wolframite

Wolframite is a resource in Astroneer. Wolframite is a yellowish ore shaped like many cubes in each other, similar to real-world bismuth. It can be refined at the Smelting Furnace to produce Tungsten.

Source
Wolframite can be found on the following planets:

The gives 2 Wolframite for every 3, up to 4 total for 6.

Media
Вольфрамит Wolframite