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Start Over You searched for: Collector Mrs. R. E. Dawson Remove constraint Collector: Mrs. R. E. Dawson Materials Basalt (basic igneous rock) Remove constraint Materials: Basalt (basic igneous rock)

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Hearst Museum object titled Hammerstone fragment, accession number 2-30846, described as Hammerstone fragment, green basalt; length 3 1//4 inches.