Radial NATROLITE cluster on a bed of white opaque ANALCIME druse on basalt matrix Robertson Pit, near Dayton, Mason County, Washington, USA Specimen is 9.5 x 6.0 x 6.0 cm (3.8 x 2.4 x 2.4 in) Photo Copyright © 2015 Jeffrey M. Schwartz
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Radial NATROLITE cluster on a bed of white opaque ANALCIME druse on basalt matrix Robertson Pit, near Dayton, Mason County, Washington, USA Specimen is 9.5 x 6.0 x 6.0 cm (3.8 x 2.4 x 2.4 in) Photo Copyright © 2015 Jeffrey M. Schwartz
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