São João del Rei pegmatite province, Minas Gerais, Brazil (original) (raw)

ⓘ Actinolite

Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2

ⓘ Albite

Formula: Na(AlSi3O8)

ⓘ Albite var. Andesine

Formula: (Na,Ca)[Al(Si,Al)Si2O8]

ⓘ Albite var. Oligoclase

Formula: (Na,Ca)[Al(Si,Al)Si2O8]

ⓘ Anorthite

Formula: Ca(Al2Si2O8)

ⓘ Anorthite var. Labradorite

Formula: (Ca,Na)[Al(Al,Si)Si2O8]

ⓘ Anthophyllite

Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2

ⓘ 'Apatite'

Formula: Ca5(PO4)3(Cl/F/OH)

ⓘ Beryl

Formula: Be3Al2(Si6O18)

ⓘ 'Biotite'

Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

ⓘ Bityite

Formula: CaLiAl2(AlBeSi2O10)(OH)2

ⓘ Cassiterite

Formula: SnO2

ⓘ 'Chlorite Group'

ⓘ Clinoenstatite

Formula: MgSiO3

ⓘ Clinoferrosilite

Formula: Fe2+2Si2O6

ⓘ 'Columbite-Tantalite'

ⓘ Cryptomelane

Formula: K(Mn4+7Mn3+)O16

ⓘ Diopside

Formula: CaMgSi2O6

ⓘ 'Diopside-Hedenbergite Series'

ⓘ Epidote

Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

ⓘ Ferro-holmquistite

Formula: ◻{Li2}{Fe2+3Al2}(Si8O22)(OH)2

ⓘ Fluorcalciomicrolite (TL)

Formula: (Ca,Na)2(Ta,Nb)2O6F

Type Locality:

References:

Andrade, M. B., Atencio, D., Persiano, A. I. C., Ellena, J. (2013) Fluorcalciomicrolite, (Ca,Na,☐)2Ta2O6F, a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. Mineralogical Magazine, 77 (7) 2989-2996 doi:10.1180/minmag.2013.077.7.08

ⓘ Fluorite

Formula: CaF2

ⓘ Forsterite

Formula: Mg2SiO4

ⓘ Gahnite

Formula: ZnAl2O4

References:

Andrade, M. B., Atencio, D., Chukanov, N. V., Ellena, J. (2013) Hydrokenomicrolite, (☐,H2O)2Ta2(O,OH)6(H2O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. American Mineralogist, 98 (2) 292-296 doi:10.2138/am.2013.4186

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

ⓘ Graphite

Formula: C

ⓘ Hematite

Formula: Fe2O3

References:

Menezes da Silva, Victor H.R., Ávila, Ciro A., Neumann, Reiner, Faulstich, Fabiano R.L., Alves, Felipe E.A., de Almeida, Filipe B., Cidade, Tais Proença, Sousa, Sarah Siqueira da Cruz Guimarães (2020) Oxycalciomicrolite, (Ca,Na)2(Ta,Nb,Ti)2O6(O,F), a new member of the microlite group (pyrochlore supergroup) from the Paleoproterozoic São João del Rei Pegmatite Province, Minas Gerais state, Brazil. Mineralogical Magazine, 84 (6) 854-858 doi:10.1180/mgm.2020.74

ⓘ Holmquistite

Formula: ◻{Li2}{Mg3Al2}(Si8O22)(OH)2

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2

ⓘ Hydrokenomicrolite (TL)

Formula: (◻,H2O)2Ta2(O,OH)6(H2O)

ⓘ Hydroxycalciomicrolite (TL)

Formula: Ca1.5Ta2O6(OH)

Type Locality:

ⓘ Ilmenite

Formula: Fe2+TiO3

ⓘ Lithiophorite

Formula: (Al,Li)MnO2(OH)2

ⓘ Magnetite

Formula: Fe2+Fe3+2O4

ⓘ Microcline

Formula: K(AlSi3O8)

ⓘ 'Microlite Group'

Formula: A2-mTa2X6-wZ-n

ⓘ 'Microlite Group var. Bariomicrolite (of Hogarth 1977)' (FRL)

Type Locality:

ⓘ Monazite-(Ce)

Formula: Ce(PO4)

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

ⓘ Oxycalciomicrolite (TL)

Formula: Ca2Ta2O6O

Type Locality:

References:

Menezes da Silva, Victor H.R., Ávila, Ciro A., Neumann, Reiner, Faulstich, Fabiano R.L., Alves, Felipe E.A., de Almeida, Filipe B., Cidade, Tais Proença, Sousa, Sarah Siqueira da Cruz Guimarães (2020) Oxycalciomicrolite, (Ca,Na)2(Ta,Nb,Ti)2O6(O,F), a new member of the microlite group (pyrochlore supergroup) from the Paleoproterozoic São João del Rei Pegmatite Province, Minas Gerais state, Brazil. Mineralogical Magazine, 84 (6) 854-858 doi:10.1180/mgm.2020.74

Menezes da Silva, V.H.R., Neumann, R., Ávila, C.A., Faulstich, F.R.L., Alves, F.E.A., de Almeida, F.B. (2020): Oxycalciomicrolite, IMA 2019-110

ⓘ Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi2]O8

ⓘ Polylithionite

Formula: KLi2Al(Si4O10)(F,OH)2

ⓘ 'Polylithionite-Trilithionite Series'

ⓘ Quartz

Formula: SiO2

Localities:

Chi-Chico claim, Nazareno, Minas Gerais, Brazil
Volta Grande mine (Mibra mine), Nazareno, Minas Gerais, Brazil
Fumal pegmatite, Nazareno, Minas Gerais, Brazil
Perdões, Minas Gerais, Brazil
Cachoeira Mine, São Tiago, Minas Gerais, Brazil

ⓘ 'Serpentine Subgroup'

Formula: D3[Si2O5](OH)4

ⓘ Spinel

Formula: MgAl2O4

ⓘ Spinel var. Pleonaste

Formula: (Mg,Fe)Al2O4

ⓘ Spodumene

Formula: LiAlSi2O6

ⓘ Talc

Formula: Mg3Si4O10(OH)2

ⓘ 'Tantalite'

Formula: (Mn,Fe)(Ta,Nb)2O6

ⓘ Tantalite-(Mn)

Formula: Mn2+Ta2O6

References:

Andrade, M. B., Atencio, D., Chukanov, N. V., Ellena, J. (2013) Hydrokenomicrolite, (☐,H2O)2Ta2(O,OH)6(H2O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. American Mineralogist, 98 (2) 292-296 doi:10.2138/am.2013.4186

ⓘ Titanite

Formula: CaTi(SiO4)O

ⓘ 'Tourmaline'

Formula: A D3G6 (T6O18)(BO3)3X3Z

ⓘ Tschermakite

Formula: ◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2

ⓘ 'Uranmicrolite (of Hogarth 1977)'

Formula: (Ca,U,Na)2-x(Ta,Nb)2(O,OH)7

ⓘ Xenotime-(Y)

Formula: Y(PO4)

References:

Menezes da Silva, Victor H.R., Ávila, Ciro A., Neumann, Reiner, Faulstich, Fabiano R.L., Alves, Felipe E.A., de Almeida, Filipe B., Cidade, Tais Proença, Sousa, Sarah Siqueira da Cruz Guimarães (2020) Oxycalciomicrolite, (Ca,Na)2(Ta,Nb,Ti)2O6(O,F), a new member of the microlite group (pyrochlore supergroup) from the Paleoproterozoic São João del Rei Pegmatite Province, Minas Gerais state, Brazil. Mineralogical Magazine, 84 (6) 854-858 doi:10.1180/mgm.2020.74

ⓘ 'Zinnwaldite'

ⓘ Zircon

Formula: Zr(SiO4)

ⓘ Zircon var. Cyrtolite

Formula: Zr[(SiO4),(OH)4]