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Hardest Minerals

Minerals at the high end of the Mohs scale, useful for teaching relative hardness.

Mineralati

A scientific reference and photo-based identification tool for rocks, minerals, crystals, gemstones, fossils and meteorites.

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How to identify minerals
How to identify rocks
Mohs hardness scale
Blue minerals
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Photo identification gives possible matches, not laboratory confirmation. Confidence scores are model estimates, not calibrated probabilities. Photographs are credited to their authors under their individual licences.

© 2026 Mineralati. Reference data is provided for education and is not a substitute for expert or laboratory analysis.