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geologic age
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        lower Eocene (2)
        
        middle Eocene
        
        Lutetian (1)
        
        upper Eocene (1)
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        Belt Supergroup (8)
        
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        Wallace Formation (1)
      - Neoproterozoic
        
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        Tonian (2)
        
        Vendian (1)
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        Aphebian
        
        Hurwitz Group (1)
        
        Marquette Range Supergroup (1)
        
        Orosirian (1)
        
        Whitewater Group (1)
        
        Willyama Supergroup (1)
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igneous rocks
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        harzburgite (1)
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metamorphic rocks
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meteorites
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minerals
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  - framework silicates
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        K-feldspar (5)
        
        microcline (2)
        
        perthite (2)
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        albite (2)
        
        anorthite (1)
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        grossular (3)
        
        pyrope (6)
        
        spessartine (2)
        
        uvarovite (2)
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        forsterite (2)
        
        olivine (1)
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        zircon (78)
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        allanite (1)
        
        epidote (2)
        
        piemontite (1)
        
        tanzanite (1)
        
        zoisite (2)
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Primary terms
- absolute age (102)
- Africa
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