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- Object[71]
- yes[71]
- no[71]
- american[71]
- argillaceous material[12]
- calcareous material[1]
- chalcedony[1]
- chert[1]
- flint[1]
- quartz[27]
- quartzite[18]
- rhyolite[3]
- sandstone[2]
- shale[4]
- siltstone[1]
65 - 71 of 71 Records
65 - 71 of 71 Records