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Colburn, R. (2004) The Formation of Thundereggs (Lithophysae). Revised edition.

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Original EntryColburn, R. (2004) The Formation of Thundereggs (Lithophysae). Revised edition.
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Mindat Ref. ID19969167Long-form Identifiermindat:1:5:19969167:0
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Full ReferenceColburn, R. (2004) The Formation of Thundereggs (Lithophysae). Revised edition.
Plain TextColburn, R. (2004) The Formation of Thundereggs (Lithophysae). Revised edition.

Map of Localities

Locality Pages

LocalityCitation Details
White Rock Springs, Crook County, Oregon, USApages 172-174, 176, 338, 385
Buchanan Ranch, Harney County, Oregon, USApp.213-219
Friend Ranch, Jefferson County, Oregon, USApages 336, 429
Thunderegg Deposit, Pony Butte, Jefferson County, Oregon, USApages 9, 19, 337, 432-433, 437
Skull Springs, Malheur County, Oregon, USApages 219, 362, 439
Black Agate Deposit, Deschutes Canyon, Wasco County, Oregon, USApages 121, 446
Freida deposit, Wasco County, Oregon, USApages 112, 119, 282, 336, 363, 368, 447-478

Mineral Occurrences

LocalityMineral(s)
White Rock Springs, Crook County, Oregon, USA Agate, Carnelian, Chalcedony, Quartz, Rhyolite, Thunder Egg
Buchanan Ranch, Harney County, Oregon, USA Agate, Cinnabar, Jasper, Opal, Quartz
Friend Ranch, Jefferson County, Oregon, USA Agate, Chalcedony, Quartz, Thunder Egg
Thunderegg Deposit, Pony Butte, Jefferson County, Oregon, USA Agate, Chalcedony, Opal, Quartz
Skull Springs, Malheur County, Oregon, USA Quartz, Thunder Egg
Freida deposit, Wasco County, Oregon, USA Agate, Calcite, Chalcedony, Quartz, Thunder Egg


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