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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Pyrolusite from
Rocio da Arramada Mine, São Luís, Odemira, Beja, Portugal


Locality type:Mine
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Rocio da Arramada Mine, São Luís, Odemira, Beja, Portugal
Data Identifiers
Mindat Occurrence Record ID:921381
Long-form Identifier:1:3:921381:4
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
1.4km (0.9 miles) ⓘBarbancho Mine, São Luís, Odemira, Beja, Portugal
2.0km (1.3 miles) ⓘHerdade das Pedras Negras Mine, São Luís, Odemira, Beja, Portugal
3.6km (2.3 miles) ⓘCourela de Manuel Manços Mine, São Luís, Odemira, Beja, Portugal
3.7km (2.3 miles) ⓘHerdade de Trajanes Mine, São Luís, Odemira, Beja, Portugal
4.5km (2.8 miles) ⓘRaco de Baixo - Cerros Serpa e Figueira - Nascedios - Penedo Amarelo - Serra Comprida and Cabeço Coelho Mines, São Luís, Odemira, Beja, Portugal
4.8km (3.0 miles) ⓘAzambujeira Mine, São Luís, Odemira, Beja, Portugal
5.1km (3.2 miles) ⓘCaniveta Mine, São Luís, Odemira, Beja, Portugal
5.3km (3.3 miles) ⓘCerro do Seixo Branco Mine, São Luís, Odemira, Beja, Portugal
5.3km (3.3 miles) ⓘHerdade da Ataboeira Mine, São Luís, Odemira, Beja, Portugal
8.2km (5.1 miles) ⓘSerra do Rosalgar Mine, Cercal do Alentejo, Santiago do Cacém, Setúbal, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1156FeMn
 
and/or  
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