Different materials do indeed have varying resistivity.
As we've already mentioned, resistivity is an intrinsic property. Different objects have an immutable resistivity.
Superconductors have a resistivity of 0 ohm-meters, meaning they are hyper conductive materials.
A few examples of superconductors are chemical elements like:
- Mercury or lead.
- Metal alloys.
- Different types of ceramics.
- Organic materials like carbon nanotubes.
As you might have already assumed, metals are particularly conductive. So they also have a low resistivity at a 10-8 ohm-meters.
Examples of these kinds of metals are silver, copper, aluminum, and tungsten. These materials get used for computer parts and light bulbs.
As the name implies, semiconductors are both conductive and resistive. Because of this, these materials are often altered to become more resistive or more conductive.
This also means that their resistive-ness is variable. They don't have a single ohm-meters measurement.
Examples of semiconductors are elements found in group 14 of the periodic table. Like silicon and germanium. Certain oxides and alloys are also great semiconductors.
Electrolytes are solid substances that dissolve in water or another "polar solvent." This creates a conductive solution.
Because each electrolyte is different and the solvent used for the solution might also be different, the resistivity of electrolytes is also variable.
Two common examples of electrolyte solutions are Gatorade and Pedialyte. They are both great to drink if electricity isn't currently flowing through them.
An insulator is a material that has a high resistivity. They prevent electricity from flowing. This class of materials has a resistivity of 1016 ohm-meters.
Examples of insulators are rubber, plastic, styrofoam, glass, and dry air. This is why you never see lightning unless it's very humid or rainy out.
Superinsulators are, as the name suggests, insulators that are good at, well, insulating.
In fact, they have an infinite resistivity. But, superinsulators only exist at extremely low temperatures.
The only known superinsulator is titanium nitride.