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Uramphite

Formula:
(NH
 
4
)
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 6H
 
2
O
System:TetragonalColour:pale green, bottle green
Lustre:VitreousHardness:2 - 3
Name:The name reflects its composition: uranyl (ur), ammonium (am) and phosphate (ph) ions.


Meta-autunite Group. Arsenate analogue of Uramarsite.

Classification of Uramphite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/E.02-160
Nickel-Strunz 10th (pending) edition ID:8.EB.15

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
Dana 8th edition ID:40.2a.7.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
Hey's CIM Ref.:19.11.9

19 : Phosphates
11 : Phosphates of U
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Type Occurrence of Uramphite

Type Locality:Tura-Kavak uranium-coal deposit, Kyrgyzstan
Year of Discovery:1957

Physical Properties of Uramphite

Lustre:Vitreous
Colour:pale green, bottle green
Streak:greenish white
Hardness (Mohs):2 - 3
Cleavage:Distinct/Good

Crystallography of Uramphite

Crystal System:Tetragonal

Optical Data of Uramphite

Type:Biaxial (-)
RI values: nα = 1.564 nβ = 1.585 nγ = 1.585
Maximum Birefringence:δ = 0.021

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v strong

Chemical Properties of Uramphite

Formula:
(NH
 
4
)
 
2
(UO
 
2
)
 
2
[PO
 
4
]
 
2
 · 6H
 
2
O
Essential elements:H, N, O, P, U
All elements listed in formula:H, N, O, P, U

Relationship of Uramphite to other Species

Related to:
  • Meta-autunite Group
    • Related Minerals - Nickel-Strunz Grouping):
    8.EB.05Autunite
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
    8.EB.05Heinrichite
    Ba(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    8.EB.05Kahlerite
    Fe(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    8.EB.05Nováčekite
    Mg(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    8.EB.05Saléeite
    Mg(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    8.EB.05Torbernite
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    8.EB.05Uranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    8.EB.05Uranospinite
    Ca(UO
     
    2
    		)(AsO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    8.EB.05Xiangjiangite
    (Fe
    3+
     
    		,Al)(UO
     
    2
    		)
     
    4
    		[OH|(SO
     
    4
    		)
     
    2
    		|(PO
     
    4
    		)
     
    2
    		] · 22H
     
    2
    		O
    8.EB.05Zeunerite
    Cu(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    8.EB.10Bassetite
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Lehnerite
    Mn
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Meta-autunite
    Ca(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		· 6-8H
     
    2
    		O
    8.EB.10Metasaléeite
    Mg(UO
     
    2
    		)(PO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    8.EB.10Metauranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 7H
     
    2
    		O
    8.EB.10Metauranospinite
    Ca(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metaheinrichite
    Ba(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metakahlerite
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metakirchheimerite
    Co(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metanováčekite
    Mg(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 4-8H
     
    2
    		O
    8.EB.10Metatorbernite
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metazeunerite
    Cu(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Przhevalskite
    Pb
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    8.EB.10Meta-lodèvite
    8.EB.15Abernathyite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.15Chernikovite
    (H
     
    3
    		O)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.15Meta-ankoleite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.15Natrouranospinite
    (Na
     
    2
    		,Ca)(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    8.EB.15Trögerite
    (UO
     
    2
    		)
     
    3
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O (?)
    8.EB.15Uramarsite
    (NH
     
    4
    		,H
     
    3
    		O)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[(AsO
     
    4
    		,PO
     
    4
    		)]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.20Threadgoldite
    Al(UO
     
    2
    		)
     
    2
    		[OH|(PO
     
    4
    		)
     
    2
    		] · 8H
     
    2
    		O
    8.EB.20Chistyakovaite
    Al(UO
     
    2
    		)
     
    2
    		[(F,OH)|(AsO
     
    4
    		)
     
    2
    		] · 6.5H
     
    2
    		O
    8.EB.25Arsenuranospathite
    HAl(UO
     
    2
    		)
     
    4
    		(AsO
     
    4
    		)
     
    4
    		·40H
     
    2
    		O
    8.EB.25Sabugalite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·16H
     
    2
    		O
    8.EB.25Uranospathite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·40H
     
    2
    		O
    8.EB.30Vochtenite
    (Fe
    2+
     
    		,Mg)Fe
    3+
     
    		(UO
     
    2
    		)
     
    4
    		[OH|(PO
     
    4
    		)
     
    4
    		] · 12-13H
     
    2
    		O
    8.EB.35Coconinoite
    Fe
    3+
    2
    		Al
     
    2
    		(UO
     
    2
    		)
     
    2
    		[(OH)
     
    2
    		|SO
     
    4
    		|(PO
     
    4
    		)
     
    4
    		] · 20H
     
    2
    		O
    8.EB.40Ranunculite
    HAlUO
     
    2
    		PO
     
    4
    		(OH)
     
    3
    		·4H
     
    2
    		O
    8.EB.45Triangulite
    Al
     
    3
    		(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		(OH)
     
    5
    		·5H
     
    2
    		O
    8.EB.50Furongite
    Al
     
    13
    		(UO
     
    2
    		)
     
    7
    		(PO
     
    4
    		)
     
    13
    		(OH)
     
    14
    		 · 58H
     
    2
    		O
    Related Minerals - Hey's Index Grouping:
    19.11.1Lermontovite
    UPO
     
    4
    		·OH·H
     
    2
    		O
    19.11.2Metavanmeersscheite
    U
    4+
     
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    19.11.3Vanmeersscheite
    U
    4+
     
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 4H
     
    2
    		O
    19.11.4Chernikovite
    (H
     
    3
    		O)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    19.11.5Vyacheslavite
    UPO
     
    4
    		(OH)·nH
     
    2
    		O
    19.11.6Metanatroautunite
    NaUO
     
    2
    		PO
     
    4
    		·4H
     
    2
    		O
    19.11.7Yingjiangite
    (K,Ca)(UO
     
    2
    		)
     
    3
    		[OH|(H
     
    2
    		O,OH)|(PO
     
    4
    		)
     
    2
    		] · 3H
     
    2
    		O
    19.11.8Meta-ankoleite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    19.11.10Torbernite
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    19.11.11Metatorbernite
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    19.11.12Saléeite
    Mg(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    19.11.13Ningyoite
    CaU(PO
     
    4
    		)
     
    2
    		·1-2H
     
    2
    		O
    19.11.14Meta-autunite
    Ca(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		· 6-8H
     
    2
    		O
    19.11.15Autunite
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
    19.11.16Pseudo-autunite
    (H
     
    3
    		O)
     
    4
    		Ca
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    4
    		 · 5H
     
    2
    		O (?)
    19.11.17Phurcalite
    Ca
     
    2
    		(UO
     
    2
    		)
     
    3
    		[O|PO
     
    4
    		]
     
    2
    		 · 7H
     
    2
    		O
    19.11.18Phosphuranylite
    (H
     
    3
    		O)
     
    3
    		KCa(UO
     
    2
    		)
     
    7
    		[O|PO
     
    4
    		]
     
    4
    		 · 8H
     
    2
    		O
    19.11.19Ulrichite
    CaCu(UO
     
    2
    		)[PO
     
    4
    		]
     
    2
    		 · 4H
     
    2
    		O
    19.11.20Bergenite
    Ca
     
    2
    		Ba
     
    4
    		[(UO
     
    2
    		)
     
    3
    		O
     
    2
    		(PO
     
    4
    		)
     
    2
    		]
     
    3
    		·16H
     
    2
    		O
    19.11.21Metauranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 7H
     
    2
    		O
    19.11.22Uranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    19.11.23Ranunculite
    HAlUO
     
    2
    		PO
     
    4
    		(OH)
     
    3
    		·4H
     
    2
    		O
    19.11.24Triangulite
    Al
     
    3
    		(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		(OH)
     
    5
    		·5H
     
    2
    		O
    19.11.25Mundite
    Al(UO
     
    2
    		)
     
    3
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 5.5H
     
    2
    		O
    19.11.26Upalite
    Al(UO
     
    2
    		)
     
    3
    		(PO
     
    4
    		)
     
    2
    		O(OH)·7H
     
    2
    		O
    19.11.27Furongite
    Al
     
    13
    		(UO
     
    2
    		)
     
    7
    		(PO
     
    4
    		)
     
    13
    		(OH)
     
    14
    		 · 58H
     
    2
    		O
    19.11.28Threadgoldite
    Al(UO
     
    2
    		)
     
    2
    		[OH|(PO
     
    4
    		)
     
    2
    		] · 8H
     
    2
    		O
    19.11.29Phuralumite
    Al
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|(PO
     
    4
    		)
     
    3
    		] · 13H
     
    2
    		O
    19.11.30Moreauite
    Al
     
    3
    		UO
     
    2
    		(PO
     
    4
    		)
     
    3
    		(OH)
     
    2
    		·13H
     
    2
    		O
    19.11.31Sabugalite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·16H
     
    2
    		O
    19.11.32Uranospathite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·40H
     
    2
    		O
    19.11.33Althupite
    AlTh(UO
     
    2
    		)
     
    7
    		[O
     
    2
    		|(OH)
     
    5
    		|(PO
     
    4
    		)
     
    4
    		] · 15H
     
    2
    		O
    19.11.34Françoisite-(Nd)
    (Nd,Ce,Sm)(UO
     
    2
    		)
     
    3
    		[O|OH|(PO
     
    4
    		)
     
    2
    		] · 6H
     
    2
    		O
    19.11.35Kivuite
    H
     
    2
    		Th(UO
     
    2
    		)
     
    3
    		[O|OH|(PO
     
    4
    		)
     
    2
    		] · 6H
     
    2
    		O (?)
    19.11.36Parsonsite
    Pb
     
    2
    		(UO
     
    2
    		)[PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    19.11.37Dewindtite
    Pb(UO
     
    2
    		)
     
    3
    		[OH|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    19.11.38Dumontite
    Pb
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    19.11.39Przhevalskite
    Pb
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    19.11.40Lehnerite
    Mn
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    19.11.41Bassetite
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    19.11.42Vochtenite
    (Fe
    2+
     
    		,Mg)Fe
    3+
     
    		(UO
     
    2
    		)
     
    4
    		[OH|(PO
     
    4
    		)
     
    4
    		] · 12-13H
     
    2
    		O

    Other Names for Uramphite

    German names:
    Uramphit
    Spanish names:
    Uramphita

    Other Information

    Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

    References for Uramphite

    Reference List:Nekrasova, Z.A. (1957) Hydrous phosphate of uranyl and ammonium (uramphite), NH4(UO2)(PO4).3H2O. Voprosy Geologii Urana (Problems of uranium geology), 67–72. (in Russian)

    Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1958): 87: 483.

    American Mineralogist (1959): 44: 464.

    Internet Links for Uramphite

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    Localities for Uramphite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Kyrgyzstan
     
    Nekrasova, Z.A. (1957) Hydrous phosphate of uranyl and ammonium (uramphite), NH4(UO2)(PO4).3H2O. Problems of uranium geology, 67–72. (in Russian)
    Mineral and/or Locality
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