| Locality type: | Complex |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Middle Mountain complex, La Plata Mining District (Winfield Mining District), Chaffee County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 463299 |
| Long-form Identifier: | 1:3:463299:3 |
| GUID (UUID V4): | 7ce837d6-2faf-45bd-bef6-c76b7baeffe3 |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | younger h1gh-s1Uca rhyoMtes and granites from Colorado and north-central New Mexico by 1X Celia H....younger high-silica rhyolites and granites from Colorado and north-central New Wexico Celia H. Steigerwald*...younger high-silica rhyolites and granites from Colorado and north-central Ney Mexico* The data were compiled...the many granite molybdenite system prospects in Colorado* We then decided to broaden the data bank to include...younger high-silica rhyolites and granites in Colorado for which chemical data were available* Our aim |  | | Journal (article/letter/editorial) | | .................. 908 White Mountain magma series, Pawtuckaway complex............................................................... 911 Homblende-biotite diorite....................................................................... 913 Pawtuckaway complex................................................................................... 913 Middle Mountain complex..........................................Rockingham County, in southeastern New Hampshire. The rocks of the area constitute an intrusive complex belonging |
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