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Robertson pit (Robertson quarry), Dayton, Mason Co., Washington, USA
A traprock quarry in Eocene submarine pillow basalt of the Crescent formation. Owned by Simpson Timber Co., Shelton, WA. Located 3.5 miles SW of Dayton.
Mineral List
| Analcime Calcite | 'Chabazite' 'Chlorite Group' | Mesolite Natrolite | Pyrite |
7 entries listed. 5 valid minerals.
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References
Rocks & Min.: 63:24-28.
Tschernich, R. (1992): Zeolites of the World, 71
Tschernich, R. (1992): Zeolites of the World, 71
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