Smartphones can contain ~80% of the stable elements on the periodic table. This graphic details the critical metals you carry in your pocket.
The energy transition will be mineral intensive and create massive demand for all the metals in renewable technologies.
Rare earth metals are critical to several modern technologies. See how rare earth production has changed over time in this chart.
Graphene is harder than diamonds, 300x stronger than steel, flexible, transparent, and a better conductor than copper (by about 1,000x).