Potential answers for "Mining geologists' materials"

⭐⭐⭐⭐ ORES
⭐⭐ TERRANE
⭐⭐ ERAS
⭐⭐ EONS
⭐⭐ STRATA
⭐⭐ EON
⭐⭐ ROCKHOUNDS
⭐⭐ RIAS

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