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techdgrubbs: DSC_3973
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techdgrubbs: DSC_3963
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techdgrubbs: DSC_3964
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techdgrubbs: DSC_3966
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techdgrubbs: DSC_3970
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techdgrubbs: DSC_3971
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techdgrubbs: Crust
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techdgrubbs: Calcification