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Aragonite  | |
| | Description: | Variety onyx | | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Baryte  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Calcite  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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'Chalcedony var: Lake Superior Agate'  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Chalcopyrite  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Dolomite  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Gypsum  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Marcasite  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Pyrite  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Quartz var: Chert  | |
| | Description: | "Rice agate" | | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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Quartz var: Jasper  | |
| | Reference: | [Jay Ellis Ransom,1974,Gems and Minerals of America] |
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Sphalerite  | |
| | Reference: | [The Minerals and Gemstones of Nebraska CSD U Neb EC 2 ] |
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