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Archerite

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Petrogale Cave, Madura Motel, Eucla, Western Australia, Australia
© 2008, JGW

Formula:
(K,NH
 
4
)[H
 
2
PO
 
4
]
System:Tetragonal
This page provides mineralogical data about Archerite.

Classification of Archerite

IMA status:Approved
Strunz 8th edition ID:7/A.12-50
Nickel-Strunz 10th (pending) edition ID:8.AD.15

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
Dana 7th edition ID:37.1.4.2
Dana 8th edition ID:37.1.4.2

37 : ANHYDROUS ACID PHOSPHATES, ARSENATES AND VANADATES
1 : Miscellaneous
Hey's CIM Ref.:19.1.7

19 : Phosphates
1 : Phosphates of the alkali metals
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Type Occurrence of Archerite

Type Locality:Petrogale Cave, Madura Motel, Eucla, Western Australia, Australia
Year of Discovery:1977

Crystallography of Archerite

Crystal System:Tetragonal
Cell Parameters:a = 7.45Å, c = 6.97Å
Ratio:a:c = 1 : 0.936
Unit Cell Volume:V 386.85 ų (Calculated from Unit Cell)

Optical Data of Archerite

Type:Uniaxial (-)
RI values: nω = 1.513 nε = 1.470
Maximum Birefringence:δ = 0.043

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

Chemical Properties of Archerite

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

Relationship of Archerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AD.05Nahpoite
Na
 
2
HPO
 
4
8.AD.10Monetite
CaHPO
 
4
8.AD.10Weilite
CaHAsO
 
4
8.AD.10Švenekite
Ca(H
 
2
AsO
 
4
)
 
2
8.AD.15Biphosphammite
(NH
 
4
,K)H
 
2
PO
 
4
8.AD.20Phosphammite
(NH
 
4
)
 
2
HPO
 
4
8.AD.25Buchwaldite
NaCaPO
 
4
8.AD.30Schultenite
PbHAsO
 
4
8.AD.35Chernovite-(Y)
YAsO
 
4
8.AD.35Dreyerite
BiVO
 
4
8.AD.35Wakefieldite-(Ce)
CeVO
 
4
8.AD.35Wakefieldite-(Y)
YVO
 
4
8.AD.35Xenotime-(Y)
YPO
 
4
8.AD.35Pretulite
ScPO
 
4
8.AD.35Xenotime-(Yb)
(Yb,Y,HREE)PO
 
4
8.AD.35Wakefieldite-(La)
LaVO
 
4
8.AD.40Pucherite
BiVO
 
4
8.AD.45Ximengite
BiPO
 
4
8.AD.50Gasparite-(Ce)
(Ce,REE)AsO
 
4
8.AD.50Monazite-(Ce)
(Ce,La,Nd,Th)PO
 
4
8.AD.50Monazite-(La)
(La,Ce,Nd)PO
 
4
8.AD.50Monazite-(Nd)
(Nd,La,Ce)PO
 
4
8.AD.50Rooseveltite
BiAsO
 
4
8.AD.50Cheralite
(Ca,Ce)(Th,Ce)[PO
 
4
]
 
2
8.AD.50Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
8.AD.50UM2005-35-VO:CaFePSiTh
(Th,Ca)[VO
 
4
,SiO
 
4
,PO
 
4
]
8.AD.55Tetrarooseveltite
Bi(AsO
 
4
)
8.AD.60Chursinite
(Hg-Hg)
 
0.5
Hg
2+
 
[AsO
 
4
]
8.AD.65Clinobisvanite
BiVO
 
4
Related Minerals - Hey's Index Grouping:

- +
19.1.1Lithiophosphate
Li
 
3
[PO
 
4
]
19.1.2Olympite
Na
 
5
Li[PO
 
4
]
 
2
19.1.3Nahpoite
Na
 
2
HPO
 
4
19.1.4Dorfmanite
Na
 
2
(PO
 
3
OH)·2H
 
2
O
19.1.5Nalipoite
NaLi
 
2
[PO
 
4
]
19.1.6Stercorite
NaNH
 
4
HPO
 
4
·4H
 
2
O
19.1.8Biphosphammite
(NH
 
4
,K)H
 
2
PO
 
4
19.1.9Phosphammite
(NH
 
4
)
 
2
HPO
 
4
19.1.10Lithiophilite
LiMn
2+
 
[PO
 
4
]
19.1.11Sicklerite
(LiMn
2+
 
,Fe
3+
 
)[PO
 
4
]
19.1.12Ferrisicklerite
(Fe
3+
 
,LiMn
2+
 
)[PO
 
4
]
19.1.13Triphylite
LiFe
2+
 
[PO
 
4
]
19.1.14Tavorite
LiFe
3+
 
[OH|PO
 
4
]
19.1.15Marićite
NaFe
2+
 
[PO
 
4
]
Related Minerals - Dana Grouping):

- +
37.1.4.1Biphosphammite
(NH
 
4
,K)H
 
2
PO
 
4

Other Names for Archerite

Synonyms:
IMA1975-008
Other Languages:
German:Archerit
Russian:Арчерит
Spanish:Archerita

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 Archerite

Reference List:American Mineralogist: 62: 1057.

Mineralogical Magazine: 41: 33-35.

Zeitschrift für Kristallographie: 74: 306-332.

Internet Links for Archerite

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    Localities for Archerite

    Hide Locality List
    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (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.
    Australia
     
    • Western Australia
      • Eucla
        • Madura Motel
    		Mineralogical Magazine (1977): 41: 33-35.
      • Nullarbor Plain
        • Eucla
    		Min. Mag. 39,467-469(1973)
    Namibia
     
    • Khomas Region
      • Windhoek District
    		[AmMin 84:193]
    Saudi Arabia
     
    • Mintaqah Makkah
    		Saudi Geological Survey Open-File Report SGS-OF-2004-12, 68 p.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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: 20th Nov 2009 19:32:36