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
Granny Smith Gold Mine, Mount Weld Station, Laverton 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 Granny Smith Gold Mine, Mount Weld Station, Laverton Shire, Western Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:545896
Long-form Identifier:1:3:545896:7
GUID (UUID V4):0
Nearest other occurrences of Biotite
13.4km (8.3 miles) ⓘMount Weld Mine, Mount Weld Station, Laverton Shire, Western Australia, Australia
20.6km (12.8 miles) ⓘJupiter Gold Mine (Doublejay; Joanne; Jenny), Mount Margaret Goldfield, Laverton Shire, Western Australia, Australia
27.9km (17.4 miles) ⓘSouth Windarra deposit, Windarra Ni Mine (Mount Windarra; Windarra; Discovery gossan; Poseidon deposit), Laverton, Laverton Shire, Western Australia, Australia
34.8km (21.6 miles) ⓘWestralia Gold Mine, Mount Morgans Gold Mine, Mount Margaret Goldfield, Laverton Shire, Western Australia, Australia
40.0km (24.9 miles) ⓘWindarra Ni Mine (Mount Windarra; Windarra; Discovery gossan; Poseidon deposit), Laverton, Laverton Shire, Western Australia, Australia
45.5km (28.3 miles) ⓘRed October Gold Mine, Linden Goldfield, Leonora Shire, Western Australia, Australia
50.7km (31.5 miles) ⓘButcher Well Gold Mine, Linden Goldfield, Leonora Shire, Western Australia, Australia
52.1km (32.4 miles) ⓘUnnamed opal deposit, White Cliffs Station, Laverton Shire, Western Australia, Australia
69.9km (43.4 miles) ⓘLord Byron gold prospect, Irwin Hills (Jasper Hills), Menzies Shire, Western Australia, Australia
References
Eilu, Pasi (2003) Exploration for orogenic gold deposits. Fennoscandian Exploration and Mining. Rovaniemi.
Mueller, Andreas G., Hall, Gregory C., Nemchin, Alexander A., Stein, Holly J., Creaser, Robert A., Mason, Douglas R. (2008) Archean high-Mg monzodiorite–syenite, epidote skarn, and biotite–sericite gold lodes in the Granny Smith–Wallaby district, Australia: U–Pb and Re–Os chronometry of two intrusion-related hydrothermal systems. Mineralium Deposita, 43 (3) 337-362 doi:10.1007/s00126-007-0164-0
 
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