Australia has some of the richest deposits of mineral sands and rare earth minerals in the world, and the US wants access to them, hoping to counter China's dominance of the industry. As Prime Minister Anthony Albanese prepares to meet with US President Donald Trump in Washington, the pair are expected to ponder rare earth minerals, as part of broader discussions on trade and tariffs. Here's what the term rare earths refers to and why they're not actually that rare.