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Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil

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(Mina do Cruzeiro)

A gemstone and specimen mine in pegmatites.
Safira pegmatite district, Eastern Brazilian pegmatite province.
Note on the mineral list: for "coeruleolactite" see references and information given for Planerite-Turquoise Series.




References:
- Rocks & Min.:63:49 & 53.
- Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and present. Mineralogical Record 11: 363-367 +370




Mineral list contains entries from the region specified including sub-localities


Mineral List:
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [MinRec 11:370; Rocks & Min.:63:49 & 53.]
  		•  Albite
    var: Cleavelandite
    Reference: [MinRec 11:370]
  		•  Amblygonite
    LiAl[(F,OH)|PO
     
    4
    		]
    Reference: [MinRec 11:370]
  		•  Beryl
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Reference: [MinRec 11:370]
    Site Photo
    Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil
    © YCL
  		•  Cassiterite
    SnO
     
    2
    Reference: [MinRec 11:370; Rocks & Min.:63:49 & 53.]
  		•  Coeruleolactite
    Reference: [Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and present. Mineralogical Record 11: 363-367 +370]
  		•  'Columbite-Tantalite'
    Reference: [MinRec 11:370]
  		•  Cookeite
    LiAl
     
    4
    		(Si
     
    3
    		Al)O
     
    10
    		(OH)
     
    8
    Reference: []
  		•  Elbaite
    [Na][(Li,Al)
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [www.johnbetts-fineminerals.com]/ Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and presnet. Mineralogical Record 11: 363-367 +370; Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143.]
    Site Photo
    Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil
    © Rob Lavinsky
  		•  Foitite
    [ ][Fe
    2+
    2
    		(Al,Fe
    3+
     
    		)][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [CanMin 38: 1399-1408 (2000); Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143.]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [MinRec 11:370]
  		•  'K Feldspar'
    Reference: [Morteani, G., Preinfalk, C., and Horn, A.H. (2000): Mineralium Deposita 35, 638-655.]
  		•  Lepidolite
    Reference: [CanMin 38: 1399-1408 (2000)]
  		•  Montmorillonite
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [MinRec 11:370]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Morteani, G., Preinfalk, C., and Horn, A.H. (2000): Mineralium Deposita 35, 638-655.]
  		•  Petalite
    LiAlSi
     
    4
    		O
     
    10
    Reference: [CanMin 38: 1399-1408 (2000)]
  		•  Phosphuranylite
    (H
     
    3
    		O)
     
    3
    		KCa(UO
     
    2
    		)
     
    7
    		[O|PO
     
    4
    		]
     
    4
    		 · 8H
     
    2
    		O
    Reference: [MinRec 11:370]
  		•  'Planerite-Turquoise Series'
    Description: Originally reported to be coeruleolactite. All purported coeruleolactite examined by the authors of the 1998 report (Foord, E.E. & Taggart, J.E.) were largely Planerite, or Occasionally turquoise. Published analysis indicates that the vacany in the 'A' site is between 0.51-0.54 atom fraction, the balance in Cu-0.40 and Zn-0.06 to 0.09. It is suggested by this analysis that the turquoise structure likely cannot accomodate Ca in the 'A' site.
    Reference: [Foord, E.E. & Taggart, J.E. (1998): A reexamination of the turquoise group; the mineral aheylite, planerite (redefined), turquoise and coeruleolactite. Mineralogical Magazine, 62, 93-111.]
  		•  Quartz
    SiO
     
    2
    Reference: [MinRec 11:370; Rocks & Min.:63:49 & 53.]
    Site Photo
    Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil
    © Rob Lavinsky
  		•  Quartz
    var: Smoky Quartz
    SiO
     
    2
    Reference: [MinRec 11:370]
    Site Photo
    Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil
    © 2009 ROM
  		•  Schorl
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [CanMin 38: 1399-1408 (2000); Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143.]
    Site Photo
    Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil
    © Rob Lavinsky
  		•  Spodumene
    LiAl[Si
     
    2
    		O
     
    6
    		]
    Reference: [MinRec 11:370]
  		•  Torbernite
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    Reference: [MinRec 11:370]
  		•  'Tourmaline
    var: Rubellite'
    Reference: []
    Site Photo
    Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil
    © Kristalle and Crystal Classics
  		•  'Unnamed (F-analogue of elbaite)'
    Reference: [Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143.]


    25 entries listed. 15 valid minerals. 1 erroneous literature entry.

    Localities in this Region:
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • São José da Safira
            • Cruzeiro mine

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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