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Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand

Mt. Ngongotaha is a rhyolite dome with high temperature gas phase silicate and oxide minerals present in cavities.

Ref.:
http://homepages.ihug.co.nz/~pincha/minerals.htm





Mineral List:
  • Augite
    (Ca,Na)(Mg,Fe
    2+
     
    ,Al,Fe
    3+
     
    ,Ti)[(Si,Al)
     
    2
    O
     
    6
    ]
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
     
  • Edenite
    Na[Ca
     
    2
    ][Mg
     
    5
    ][(OH)
     
    2
    |AlSi
     
    7
    O
     
    22
    ]
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
     
  • Fayalite
    Fe
    2+
    2
    [SiO
     
    4
    ]
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © Judy Rowe
  • Ferro-edenite
    [Na][Ca
     
    2
    ][Fe
    2+
    5
    ][(OH)
     
    2
    |AlSi
     
    7
    O
     
    22
    ]
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © Leon Hupperichs
  • Hematite
    Fe
     
    2
    O
     
    3
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © crocoite.com
  • 'Hornblende'
    Reference: [Martin Stolworthy Collection]
  • Ilmenite
    Fe
    2+
     
    TiO
     
    3
    Reference: [Martin Stolworthy Collection]
  • Magnetite
    Fe
    2+
     
    Fe
    3+
    2
    O
     
    4
    Reference: [J. Thornton, ed., Micro-Scope, February 1994]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © Judy Rowe
  • Mullite
    Al
     
    8
    [(O,OH,F)|(Si,Al)O
     
    4
    ]
     
    4
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
     
  • Osumilite
    (K,Na)(Fe
    2+
     
    ,Mg)
     
    2
    (Al,Fe
    3+
     
    )
     
    3
    (Si,Al)
     
    12
    O
     
    30
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © Martin Stolworthy
  • Phlogopite
    KMg
     
    3
    [(OH,F)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © Saul Krotki 2005
  • Pseudobrookite
    Fe
     
    2
    TiO
     
    5
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © Judy Rowe
  • Quartz
    SiO
     
    2
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
    © Judy Rowe
  • Richterite
    Na[CaNa][Mg
     
    5
    ][(OH)
     
    2
    |Si
     
    8
    O
     
    22
    ]
    Reference: [http://www.abdn.ac.uk/geology/profiles/analysis/software.htm recalc of http://www.abdn.ac.uk/geology/profiles/analysis/software.htm recalc of ferrikatophorite data ]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
     
  • Titanite
    CaTi[O|SiO
     
    4
    ]
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
     
  • Tridymite
    SiO
     
    2
    Reference: [Martin Stolworthy Collection]
    Site Photo
    Hendersons Quarry, Mt. Ngongotaha, Rotorua, Bay of Plenty, North Island, New Zealand
     


    16 entries listed. 15 valid minerals.

    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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