Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Biotite from
Cock Robin Mine (Twin Hills), Jeedamya Station, Menzies Shire, Western Australia, Australia


Locality type:Mine
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Cock Robin Mine (Twin Hills), Jeedamya Station, Menzies Shire, Western Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:600275
Long-form Identifier:1:3:600275:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
16.3km (10.1 miles) ⓘSelkirk Gold Mine (Dublin Castle; Coronation; Menzies Proprietary; Dublin Proprietary), Menzies, Menzies Shire, Western Australia, Australia
16.4km (10.2 miles) ⓘRobinson Crusoe Gold Mine (Crusoe; Menzies Crusoe), Menzies, Menzies Shire, Western Australia, Australia
16.6km (10.3 miles) ⓘFirst Hit Gold Mine, Menzies, Menzies Shire, Western Australia, Australia
17.1km (10.6 miles) ⓘLady Shenton Gold Mine, Menzies, Menzies Shire, Western Australia, Australia
18.0km (11.2 miles) ⓘGolden Age Gold Mine, Menzies, Menzies Shire, Western Australia, Australia
18.7km (11.6 miles) ⓘLady Harriet Gold Mine (Pioneer; Menzies Pioneer), Menzies, Menzies Shire, Western Australia, Australia
20.6km (12.8 miles) ⓘYunndaga Gold Mine (Menzies Consolidated; Royal), Menzies, Menzies Shire, Western Australia, Australia
45.8km (28.5 miles) ⓘAltona Gold Mine (Altona Central), Kookynie, Kookynie Goldfield, Menzies Shire, Western Australia, Australia
47.4km (29.5 miles) ⓘUlysses Gold Mine, Tampa, Kookynie Goldfield, Menzies Shire, Western Australia, Australia
48.8km (30.3 miles) ⓘPuzzle Gold Mine, Kookynie, Kookynie Goldfield, Menzies Shire, Western Australia, Australia
References
Witt, W. K., Knight, J. T., Mikucki, E. J. (1997) A synmetamorphic lateral fluid flow model for gold mineralization in the Archean southern Kalgoorlie and Norseman terranes, Western Australia. Economic Geology, 92 (4) 407-437 doi:10.2113/gsecongeo.92.4.407
 
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