Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (6 online) Mindat Auctions

Gatehouseite

Big Photo

Iron Monarch open cut, Iron Knob, Middleback Range, Eyre peninsula, South Australia, Australia
© Richard Bayerl

Show Gatehouseite Photos (3)
Formula:
Mn
2+
5
[(OH)
 
2
|PO
 
4
]
 
2
System:OrthorhombicLustre:Adamantine
Hardness:4
This page provides mineralogical data about Gatehouseite.

Classification of Gatehouseite

IMA status:Approved 1992
Strunz 8th edition ID:7/B.11-65
Nickel-Strunz 10th (pending) edition ID:8.BD.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
D : With only medium-sized cations, (OH, etc.):RO4= 2:1
Dana 8th edition ID:41.4.1.2

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
4 : (AB)5(XO4)2Zq
mindat.org URL:http://www.mindat.org/min-6966.html
Please feel free to link to this page.

Type Occurrence of Gatehouseite

Type Locality:Iron Monarch open cut, Iron Knob, Middleback Range, Eyre peninsula, South Australia, Australia
Year of Discovery:1993

Physical Properties of Gatehouseite

Lustre:Adamantine
Hardness (Mohs):4

Crystallography of Gatehouseite

Crystal System:Orthorhombic
Cell Parameters:a = 9.09Å, b = 5.69Å, c = 18Å
Ratio:a:b:c = 1.598 : 1 : 3.163
Unit Cell Volume:V 931.00 ų (Calculated from Unit Cell)

Optical Data of Gatehouseite

Type:Biaxial (+/-)
RI values: nα = 1.740 nβ = 1.750 nγ = 1.760
Maximum Birefringence:δ = 0.020

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

Chemical Properties of Gatehouseite

Formula:
Mn
2+
5
[(OH)
 
2
|PO
 
4
]
 
2
Essential elements:H, Mn, O, P
All elements listed in formula:H, Mn, O, P
Common Impurities:Fe,Cu,Zn,Pb,Al,V,As,H2O

Relationship of Gatehouseite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BD.05Cornubite
Cu
 
5
[(OH)
 
2
|AsO
 
4
]
 
2
8.BD.05Cornwallite
Cu
 
5
[(OH)
 
2
|AsO
 
4
]
 
2
8.BD.05Ludjibaite
Cu
 
5
[(OH)
 
2
|PO
 
4
]
 
2
8.BD.05Pseudomalachite
Cu
 
5
[(OH)
 
2
|PO
 
4
]
 
2
8.BD.05Reichenbachite
Cu
 
5
[OH)
 
2
|PO
 
4
]
 
2
8.BD.10Arsenoclasite
Mn
2+
5
[(OH)
 
2
|AsO
 
4
]
 
2
8.BD.15Parwelite
(Mn,Mg,Ca)
 
5
Sb(As,Si)
 
2
O
 
12
8.BD.20Reppiaite
Mn
2+
5
[(OH)
 
2
|VO
 
4
]
 
2

Other Names for Gatehouseite

Synonyms:
GatehousiteIMA1992-016
Other Languages:
German:Gatehouseit
Gatehousit
Russian:Гейтхаузит
Spanish:Gatehouseita
Gatehousita

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 Gatehouseite

Reference List:New Minerals (1997), New Minerals 1990-1994.

Mineralogical Magazine: 57: 309-313.

Inorganic Chemistry: 16: 2417-2422.

Articles/Blogs about Gatehouseite

Internet Links for Gatehouseite

Search Engines:
  • Look for Gatehouseite on Google
  • Look for Gatehouseite images on Google
    • External Links:
  • Look for Gatehouseite on Webmineral
  • Look for Gatehouseite on Athena Mineralogy
  • Look for Gatehouseite on Wikipedia
  • Look for Gatehouseite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Gatehouseite in the Natural History Museum (London) online catalogue
  • Gatehouseite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Buy Minerals and Crystals from Crystalarium.com
  • Buy fine minerals and gemstones from Pala International
  • Search for Gatehouseite at Thames Valley Minerals
  • Search for - Gatehouseite - on e-Rocks Mineral Sales & Auctions
  • Rare and Unusual minerals at Mineralogical Research Company
  • Search for Gatehouseite on minvision.com
  • Wendel Minerals - Auktion & Shop
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Buy Fine Minerals from mineralsweb.com
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy minerals from Mineralium.com
  • Lapis Mineral Magazin
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Gatehouseite

    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.
    These maps work faster with Firefox!
    (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
     
    • South Australia
      • Eyre peninsula
        • Middleback Range
          • Iron Knob
    		MM 57 (1993), 309; NM 90-94 (1997); HB4 (2000)
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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.