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chert - banded chert from the Monterey Formation, California - large hand/display specimen
$ 20.00
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conglomerate derived from the Franciscan-Knoxville sequence - hand/display specimen
$ 10.50
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diatomite - teaching hand specimen of lacustrine diatomite
$ 7.50
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diatomite - teaching hand specimen of the Valmonte diatomite, a unit of the Monterey Formation of California
$ 7.50
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graywacke - teaching hand/display specimen of an Upper Cretaceous graywacke from the Sites Formation
$ 7.50
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limestone - teaching hand specimen of a dark gray Lower Paleozoic limestone from the Darwin Hills, Calif.
$ 7.50
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magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate from the Kramer Hills
$ 7.50
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oil sand - Graciosa coarse-grained member of the Careaga sandstone impregnated with oil from the underlying Monterey Formation - display specimen
$ 12.50
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