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Huron River uranium prospect (Unnamed Vanadium Prospect MRDS - 10171055), Huron River, Baraga Co., Michigan, USA

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Refs.:

Bodwell, W. A. (1972) "A Geologic and Mineral Map of Michigan's Upper Peninsula", Michigan Technological University Press.

Carlson, S. M., Robinson, G. W., Elder, M. J., Jaszczak, J. A., Bornhorst, T. J. (2007) "Greenockite and Associated Uranium-Vanadium Minerals From the Huron River Uranium Prospect, Baraga County, Michigan", Rocks and Minerals, vol. 82, pp. 298-308.

A uranium prospect in the Michigamme Fm. Lower Slate. The mineralized slate and quartzite crops out as a picturesque waterfall and canyon walls in the East Branch Huron River. This outcrop represents a thrust fault between the slate and quartzite. Meteoric waters percolating through this fault zone have deposited minerals leached from surrounding rock.





Map Reference: 46°51'15"N , 88°3'40"W

This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.



Mineral List:
  		•  Azurite
    Cu
     
    3
    		[OH|CO
     
    3
    		]
     
    2
    Description: Tiny crystals associated with copper sulfides and bornite
    Reference: [Rocks & Minerals 82:298-308]
  		•  'Bitumen'
    Reference: [Rocks & Minerals 82:298-308]
  		•  Bornite
    Cu
     
    5
    		FeS
     
    4
    Reference: [Rocks & Minerals 82:298-308]
  		•  Calcite
    CaCO
     
    3
    Description: As breccia cement or encrustations. Some contain significant cadmium (cream-white fluorescence) or minor manganese (orange fluorescence.)
    Reference: [Mineralogy of Michigan (2004) Heinrich & Robinson]
  		•  Cerussite
    PbCO
     
    3
    Description: Microcrystals with minor cadmium in substitution.
    Reference: [Rocks & Minerals 82:298-308]
  		•  Chalcocite
    Cu
     
    2
    		S
    Reference: [Rocks & Minerals 82:298-308]
  		•  Chalcopyrite
    CuFeS
     
    2
    Description: mm-scale grains
    Reference: [Rocks & Minerals 82:298-308]
  		•  Chervetite
    Pb
     
    2
    		[V
     
    2
    		O
     
    7
    		]
    Description: A component of an encrustation of a mineral mixture.
    Reference: [Rocks & Minerals 82:298-308]
  		•  'Chlorite Group'
    Habit: massive
    Colour: gray-green; dark gray
    Reference: [Rocks & Minerals 82:298-308]
  		•  Chrysocolla
    (Cu,Al)
     
    2
    		H
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·nH
     
    2
    		O
    Habit: massive
    Colour: blue
    Description: small crusts, botryoids
    Reference: [Rocks & Minerals 82:298-308]
  		•  Cinnabar
    HgS
    Colour: red
    Description: granules
    Reference: [Rocks & Minerals 82:298-308]
  		•  Copper
    Cu
    Description: microscopic and submicroscopic flakes in chlorite slate and calcite
    Reference: [Rocks & Minerals 82:298-308]
  		•  Coronadite
    Pb(Mn
    4+
     
    		,Mn
    3+
     
    		)
     
    8
    		O
     
    16
    Habit: dendritic
    Colour: black
    Reference: [Rocks & Minerals 82:298-308]
  		•  Covellite
    CuS
    Colour: purple-blue
    Description: mm-scale crystals
    Reference: [Rocks & Minerals 82:298-308]
  		•  Cuprite
    Cu
     
    2
    		O
    Habit: Massive
    Colour: red
    Description: tiny aggregates and coatings
    Reference: [Rocks & Minerals 82:298-308]
  		•  Dickite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Habit: massive
    Colour: white
    Description: several-cm masses in slates surrounding the prospect
    Reference: [Rocks & Minerals 82:298-308]
  		•  Dolomite
    CaMg(CO
     
    3
    		)
     
    2
    Colour: brownish yellow
    Reference: [Rocks & Minerals 82:298-308]
  		•  Galena
    PbS
    Description: small cleavage masses, and as cubes with greenockite
    Reference: [Mineralogy of Michigan (2004) Heinrich & Robinson]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Habit: massive
    Description: limonitic masses and coatings
    Reference: [Rocks & Minerals 82:298-308]
  		•  Graphite
    C
    Colour: black
    Reference: [Rocks & Minerals 82:298-308]
  		•  Greenockite
    CdS
    Habit: prismatic
    Colour: yellow-orange
    Description: crusts as well as well-formed microcrystals in calcite
    Reference: [Rocks & Minerals 82:298-308]
    Site Photo
    Huron River uranium prospect (Unnamed Vanadium Prospect MRDS - 10171055), Huron River, Baraga Co., Michigan, USA
    © J.A. Jaszczak
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Colour: red
    Description: as stains, as pyrite replacements, and well-crystalized small plates in quartz vugs
    Reference: [Rocks & Minerals 82:298-308]
  		•  Hydrozincite
    Zn
     
    5
    		[(OH)
     
    3
    		|CO
     
    3
    		]
     
    2
    Habit: massive
    Colour: white
    Fluorescence: blue-white
    Description: crusts on slate
    Reference: [Rocks & Minerals 82:298-308]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Description: isolated grains in rock
    Reference: [Rocks & Minerals 82:298-308]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Habit: massive, acicular
    Colour: green
    Description: crusts, cm-scale acicular sprays
    Reference: [Rocks & Minerals 82:298-308]
  		•  Metatyuyamunite
    Ca(UO
     
    2
    		)
     
    2
    		[VO
     
    4
    		]
     
    2
    		 · 3-5H
     
    2
    		O
    Reference: [Mineralogy of Michigan (2004) Heinrich & Robinson]
  		•  Montroseite
    (V,Fe)O(OH)
    Reference: [Rocks & Minerals 82:298-308]
  		•  Mottramite
    Pb(Cu,Zn)[OH|VO
     
    4
    		]
    Reference: [Rocks & Minerals 82:298-308]
  		•  Nickeline
    NiAs
    Reference: [Rocks & Minerals 82:298-308]
  		•  Otavite
    CdCO
     
    3
    Reference: [Rocks & Minerals 82:298-308]
  		•  Pyrite
    FeS
     
    2
    Reference: [Rocks & Minerals 82:298-308]
  		•  Quartz
    SiO
     
    2
    Reference: [Mineralogy of Michigan (2004) Heinrich & Robinson]
  		•  Rutile
    TiO
     
    2
    Reference: [Rocks & Minerals 82:298-308]
  		•  Silver
    Ag
    Reference: [Rocks & Minerals 82:298-308]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Rocks & Minerals 82:298-308]
  		•  Tyuyamunite
    Ca(UO
     
    2
    		)
     
    2
    		[VO
     
    4
    		]
     
    2
    		 · 5-8H
     
    2
    		O
    Reference: [Rocks & Minerals 82:298-308]
  		•  Uraninite
    UO
     
    2
    Reference: [Rocks & Minerals 82:298-308]
  		•  Uraninite
    var: Pitchblende
    UO
     
    2
    Reference: [Mineralogy of Michigan (2004) Heinrich & Robinson]
  		•  Uranospinite
    Ca(UO
     
    2
    		)(AsO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    Reference: [Rocks & Minerals 82:298-308]
  		•  Volborthite
    Cu
     
    3
    		[(OH)
     
    2
    		|V
     
    2
    		O
     
    7
    		] · 2H
     
    2
    		O
    Reference: [Mineralogy of Michigan (2004) Heinrich & Robinson]
  		•  Wakefieldite-(Y)
    YVO
     
    4
    Reference: [Rocks & Minerals 82:298-308]
  		•  Widenmannite
    Pb
     
    2
    		(UO
     
    2
    		)[CO
     
    3
    		]
     
    3
    Reference: [Rocks & Minerals 82:298-308]


    42 entries listed. 39 valid minerals.

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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in Michigan, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 29th Nov 2009 23:24:31