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Acanthite : Ag2S, Silver : Ag, Quartz : SiO2 | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA Acanthite with silver and quartz. Smithsonian Institute specimen #R17303. This locality is much better known for its Autunite specimens but it did produce a few fine acanthite specimens. The marker at the bottom of the image is an inch with a rule at one cm. |
| Photo ID: 215981 View Count: 95 | |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA A rich specimen of solid autunite, colored a bright green-yellow. The crystals are of the form of thick wheatsheaves representative of the best specimens from this classic mine, and not found in this quality for decades. This piece, in fact, is a proven oldtimer as it has a label from New York dealer Hugh Ford that is probably from around the ... |
| © Rob Lavinsky | Photo ID: 20885 View Count: 433 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA 6.7 x 4.2 x 3.8 cm. An SUPERB and super-rich specimen of fan-like clusters of lustrous, bladed yellow-green autunite from the famous Daybreak Mine of Washington. These specimens were mined in the 1960s. The autunite bundles very nearly cover the sturdy, mounded matrix on this exceptional piece. This specimen is of the highest quality and is ... |
| © Rob Lavinsky | Photo ID: 142365 View Count: 126 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA Very large cluster of yellow-green autunite crystals up to 15 mm! Fluoresces bright green under UV illumination. Radioactive. Very stable, no sign of decomposition. With old label from L. Conklin. Ex. Al Sebela collection. Overall size of mineral specimen: 5x4x4 cm. Size of individual crystals: 5-15 mm. |
| © 2001 John H. Betts | Photo ID: 1271 View Count: 503 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA A beautiful unstabilized cluster of Autunite crystals measuring 2.7cm. Michael Cline collection and photograph. |
| © Michael Cline | Photo ID: 104446 View Count: 151 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA 2.2 x 1.8 x 1.2 cm. Autunite is an interesting and actually quite pretty rare uranium mineral (hydrated calcium uranyl phosphate) with formula: Ca(UO2)2(PO4)2•10-12H2O. It is classic from this mine in Washington state. The crystals form these pretty bright yellow-green "books" or sheaves. |
| © Rob Lavinsky | Photo ID: 203061 View Count: 60 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA Thin formation of yellow-green autunite crystals. Fluoresces bright green under UV illumination. No damage. Radioactive. Overall size of mineral specimen: 4x3x.5 cm. Size of individual crystals: 5 mm. |
| © 2002 John H. Betts | Photo ID: 3534 View Count: 426 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA From the Carlton Davis collection, a very fine, colorful miniature of this classic uranium species from what is certainly the most important locality in the US for the species. These specimens with large radial crystal clusters came out decades ago, generally prior to the 1960s. To get a fine miniature of this size with no damage is hard these ... |
| © Rob ++++++++ | Photo ID: 18895 View Count: 264 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA 3.5 x 3.2 x 2.2 cm. An excellent and super-rich specimen of fan-like clusters of lustrous, bladed yellow-green autunite from the famous Daybreak Mine of Washington. These specimens were mined in the 1960s. The autunite bundles comprise the entire piece. |
| © Rob Lavinsky | Photo ID: 188394 View Count: 51 |
Autunite : Ca(UO2)2(PO4)2·11H2O | |
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Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA Three small autunite specimens. Specimens are from the collection of Karl Fair (1974). Scale at bottom of image is an inch with a rule at one cm. |
| Photo ID: 217910 View Count: 41 | |
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