Twinned CALCITE Robertson Pit, near Dayton, Mason County, Washington, USA Dimensions: 2-1/2 x 1-1/2 x 1-1/2 in Collected by Jeff Schwartz in 2000 Photo Copyright © 2002 Jeffrey M. Schwartz
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Twinned CALCITE Robertson Pit, near Dayton, Mason County, Washington, USA Dimensions: 2-1/2 x 1-1/2 x 1-1/2 in Collected by Jeff Schwartz in 2000 Photo Copyright © 2002 Jeffrey M. Schwartz
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