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 Bulandeira mine, Equador, Rio Grande do Norte, Brazil

Data Identifiers

Mindat Occurrence Record ID:

1487766

Long-form Identifier:

1:3:1487766:7

GUID (UUID V4):

bd4d7060-33f2-4049-b78e-87ab89ae8fb0

Nearest other occurrences of Biotite

7.5km (4.6 miles)

ⓘ Quintos de Cima mine, Parelhas, Rio Grande do Norte, Brazil

15.5km (9.6 miles)

ⓘ Boqueirão pegmatite, Parelhas, Rio Grande do Norte, Brazil

17.0km (10.5 miles)

ⓘ Capoeira 1 pegmatite (Boqueirãozinho pegmatite), Parelhas, Rio Grande do Norte, Brazil

17.2km (10.7 miles)

ⓘ Capoeira 2 pegmatite (Mulungu pegmatite), Parelhas, Rio Grande do Norte, Brazil

28.1km (17.5 miles)

ⓘ Roncadeira pegmatite, Nova Palmeira, Paraíba, Brazil

References

Carrino, Thais Andressa, Barreto, Sandra de Brito, Oliveira, Paula Jussara Azevedo de, Araújo Neto, José Ferreira de, Correia, Aldine Maria de Lima (2019) Linking gemology and spectral geology: a case study of elbaites from Seridó Pegmatite Province, Northeastern Brazil. Brazilian Journal of Geology, 49 (2) doi:10.1590/2317-4889201920180113

Reference Search (possible matching items)

	Soares, D. R., Beurlen, H., Barreto, S. d. B., Da Silva, M. R. R., Ferreira, A. C. M. (2008) COMPOSITIONAL VARIATION OF TOURMALINE-GROUP MINERALS IN THE BORBOREMA PEGMATITE PROVINCE, NORTHEASTERN BRAZIL. The Canadian Mineralogist, 46 (5) 1097-1116 doi:10.3749/canmin.46.5.1097	Journal (article/letter/editorial)
	THE BORBOREMA PEGMATITE PROVINCE, NORTHEASTERN BRAZIL Dwight Rodrigues SOARES§ Centro Federal de Educação...Coelho Lemos, 671, 58100-000, Campina Grande, State of Paraíba, Brazil Hartmut BEURLEN Programa de Pós-Graduação...Ramos s.n., 54740-530, Recife, State of Pernambuco, Brazil Sandra de Brito BARRETO and Marcelo Reis Rodrigues...Ramos s.n., 54740-530, Recife, State of Pernambuco, Brazil Ana Claudia Mousinho FERREIRA Centro Federal de...Coelho Lemos, 671, 58100-000, Campina Grande, State of Paraíba, Brazil Abstract Various species of the tourmaline-group
	Beurlen, H., de Moura, O. J. M., Soares, D. R., Da Silva, M. R. R., Rhede, D. (2011) Geochemical and geological controls on the genesis of gem-quality "Paraiba Tourmaline" in granitic pegmatites from northeastern Brazil. The Canadian Mineralogist, 49 (1) 277-300 doi:10.3749/canmin.49.1.277	Journal (article/letter/editorial)
	TOURMALINE” IN GRANITIC PEGMATITES FROM NORTHEASTERN BRAZIL Hartmut BEURLEN§ Departamento de Geologia, Universidade...Hélio Ramos s.n., 50740–530, Recife, Pernambuco, Brazil Odúlio J.M. de MOURA H&R Exportação e Importação...Imperiais 437, CEP 35042–060, Governador Valadares, MG, Brazil Dwight R. SOARES Instituto Federal de Educação...Tranquilino Coelho Lemos 671, 58100–000, Campina Grande – Paraíba, Brazil Marcelo R.R. DA SILVA Departamento de...Hélio Ramos s.n., 50740–530, Recife, Pernambuco, Brazil Dieter RHEDE GeoForschungsZentrum Potsdam, Telegrafenberg

Biotite from Bulandeira mine, Equador, Rio Grande do Norte, Brazil

Biotite from
Bulandeira mine, Equador, Rio Grande do Norte, Brazil