| Locality type: | Mountain |
| Classification |
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| Species: | Hercynite |
| Formula: | Fe2+Al2O4 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Hercynite data |
| Locality Data: | Click here to view Cima di Vazzeda, Val Forno, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 558972 |
| Long-form Identifier: | 1:3:558972:2 |
| GUID (UUID V4): | 273fb4cc-489d-4e57-9251-a73881a2f080 |
| Nearest other occurrences of Hercynite |
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| 2.4km (1.5 miles) | ⓘForno glacier, Val Forno, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland |
| 48.9km (30.4 miles) | ⓘLe Prese, Sondalo, Sondrio Province, Lombardy, Italy |
| 58.5km (36.4 miles) | ⓘWeissfluh pass, Wolfgang, Davos, Prättigau/Davos Region, Grisons, Switzerland |
| 60.0km (37.3 miles) | ⓘTot Alp, Wolfgang, Davos, Prättigau/Davos Region, Grisons, Switzerland |
| References |
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| Reference Search (possible matching items) |
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 | | Book (volume) | | 528). The most common pyroxenes are those of the Di- Hd- En- Fs quadrilateral. The more calcium-rich...is most probably an important constituent in the upper mantle, an environment in which it will be associated...1250° for MgSiO3 to 1370°C at the composition En 92 Di 8 • The average linear thermal expansion coefficients...and McLelland, 1973). In the southern area of the region the orthopyroxene shelJ is succeeded by a partial...and spinel while in the north-east area of the region the outer shell consists of garnet. The origin |
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