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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Biotite from
Lord Nelson Gold Mine, Sandstone, Sandstone 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 Lord Nelson Gold Mine, Sandstone, Sandstone Shire, Western Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:945156
Long-form Identifier:1:3:945156:8
GUID (UUID V4):0
Nearest other occurrences of Biotite
82.5km (51.3 miles) ⓘYouanmi Group, Sandstone Shire, Western Australia, Australia
93.8km (58.3 miles) ⓘSongvang Gold Mine, Agnew Goldfield (Lawlers), Leonora Shire, Western Australia, Australia
95.4km (59.3 miles) ⓘCox-Crusader Gold Mine, Agnew Goldfield (Lawlers), Leonora Shire, Western Australia, Australia
95.6km (59.4 miles) ⓘClaudius Creek Gold Mine, Agnew Goldfield (Lawlers), Leonora Shire, Western Australia, Australia
96.4km (59.9 miles) ⓘRedeemer Gold Mine, Agnew Goldfield (Lawlers), Leonora Shire, Western Australia, Australia
99.2km (61.6 miles) ⓘNew Holland-Genesis Gold Mine, Agnew Goldfield (Lawlers), Leonora Shire, Western Australia, Australia
References
Lowe, K., Ross, A.F. (2007), Troy Resources NL: Sandstone Project, Snowdon, June 2007
 
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