Lodestone
Lodestone is a naturally magnetized piece of the mineral magnetite found in nature, used historically in navigation and today for educational, collectible, or spiritual purposes.
Estimated value as of 2026 · Source: Azuregreen.net retail listing for single Natural Lodestone
Fun Fact
Lodestone was the first known natural magnet, used in ancient compasses by aligning with Earth's magnetic field when suspended by a thread.
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