A rare mineral containing calcium, magnesium, iron, and phosphate, found in metamorphic rocks.
Named after Adelheid, the German wife of mineralogist Georg Karl Humboldt, or derived from the place where it was discovered. The '-ite' suffix is standard for mineral names, derived from Greek 'lithos' meaning stone.
Adelite is so rare that most geologists will never see a specimen in person—it's more of a legendary mineral that mineral collectors pursue like treasure hunters!
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