| Locality type: | Beds |
| Classification |
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| Species: | 'Plagioclase' (not an IMA approved species) |
| Formula: | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Plagioclase data |
| Locality Data: | Click here to view Del Norte Thunder Egg beds, Saguache County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 228235 |
| Long-form Identifier: | 1:3:228235:0 |
| GUID (UUID V4): | be72716a-f726-48a3-a6d9-31890e0bd2a8 |
| Nearest other occurrences of Plagioclase |
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| 66.0km (41.0 miles) | ⓘRazor Creek Dome, Saguache County, Colorado, USA |
| 74.2km (46.1 miles) | ⓘUnnamed Uranium - Feldspar Mine (MRDS - 10013132), Saguache County, Colorado, USA |
| 89.8km (55.8 miles) | ⓘUnnamed Pegmatite occurrence [3], Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA |
| 90.4km (56.2 miles) | ⓘPride of America Mine, Galena Mining District (Henson Creek Mining District), Hinsdale County, Colorado, USA |
| 91.5km (56.9 miles) | ⓘMcCoy prospects, Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA |
| 92.6km (57.5 miles) | ⓘBucky pegmatite (New Anniversary; Willow Creek), Quartz Creek Pegmatite Mining District, Gunnison County, Colorado, USA |
| 94.4km (58.7 miles) | ⓘBeth Group, Uncompahgre Peak Area, Hinsdale County, Colorado, USA |
| 95.1km (59.1 miles) | ⓘCotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA |
| 99.7km (62.0 miles) | ⓘCotopaxi Feldspar Mine (Cotopaxi Feldspar prospect; Henry pegmatite), Cotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | Occurrence and Genesis of Thunder Eggs Containing Plume and Moss Agate Downloaded by [Tufts University]...06:56 07 October 2014 from the Del Norte Area, Saguache County, Colorado DANIEL E. KILE U.S. Geological...Suite E-127 Boulder, Colorado 80303 dekile@usgs.gov Figure 1. View of the Del Norte area, showing Tertiary...nown since the late 1800s, the thunder-egg beds near Del Norte, Colorado, have provided the collector in...interior of spherical nodules commonly known as thunder eggs. Plume and moss structures are three dimensional |
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