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Muskoxite

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Formula:
Mg
 
7
Fe
 
4
O
 
13
 · 10H
 
2
O
System:TrigonalColour:Dark reddish brown
Hardness:3
Name:For the type locality, the Muskox intrusion.
This page provides mineralogical data about Muskoxite.

Classification of Muskoxite

IMA status:Approved
Strunz 8th edition ID:4/F.05-30
Nickel-Strunz 10th (pending) edition ID:4.FL.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
Dana 8th edition ID:7.11.1.1

7 : MULTIPLE OXIDES
11 : Miscellaneous
Hey's CIM Ref.:7.20.12

7 : Oxides and Hydroxides
20 : Oxides of Fe
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Type Occurrence of Muskoxite

Type Locality:Muskox Intrusion, Coppermine River area, Northwest Territories, Canada
General Appearance of Type Material:Veins in drill core
Year of Discovery:1969

Physical Properties of Muskoxite

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:Dark reddish brown
Streak:Light orange-brown
Hardness (Mohs):3
Tenacity:Brittle
Cleavage:Perfect
Basal
Density (measured):3.10 - 3.20 g/cm3

Crystallography of Muskoxite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Cell Parameters:a = 3.07Å, c = 4.6Å
Ratio:a:c = 1 : 1.498
Unit Cell Volume:V 37.55 ų (Calculated from Unit Cell)
Morphology:Paper thin hexagons, trigonal equant grains.
Comment:Pseudo cell - actual cell believed to be larger

Optical Data of Muskoxite

Type:Biaxial (-)
Dispersion:relatively strong
Pleochroism:Non-pleochroic

Chemical Properties of Muskoxite

Formula:
Mg
 
7
Fe
 
4
O
 
13
 · 10H
 
2
O
Essential elements:Fe, H, Mg, O
All elements listed in formula:Fe, H, Mg, O

Relationship of Muskoxite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.FL.05Woodallite
Mg
 
6
Cr
 
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
4.FL.05Iowaite
Mg
 
6
Fe
3+
2
(OH)
 
16
Cl
 
2
 · 4H
 
2
O
4.FL.05Jamborite
(Ni
2+
 
,Ni
3+
 
,Co,Fe)(OH)
 
2
(OH,S,H
 
2
O)
4.FL.05Meixnerite
Mg
 
6
Al
 
2
(OH)
 
18
 · 4H
 
2
O
4.FL.05Fougèrite
(Fe
2+
 
,Mg)
 
6
Fe
3+
2
(OH)
 
18
 · 4H
 
2
O
4.FL.10Hydrocalumite
Ca
 
2
Al(OH)
 
7
 · 2H
 
2
O
4.FL.15Kuzelite
Ca
 
4
Al
 
2.4
(OH)
 
12.8
(SO
 
4
) · 6H
 
2
O
4.FL.20Aurorite
(Mn
2+
 
,Ag,Ca)Mn
4+
3
O
 
7
 · 3H
 
2
O
4.FL.20Chalcophanite
(Zn,Fe,Mn)Mn
 
3
O
 
7
 · 3H
 
2
O
4.FL.20Ernienickelite
NiMn
 
3
O
 
7
 · 3H
 
2
O
4.FL.20Jianshuiite
(Mg,Mn)Mn
 
3
O
 
7
 · 3H
 
2
O
4.FL.25Woodruffite
Zn(Mn
4+
 
,Mn
3+
 
)
 
5
O
 
10
·3½H
 
2
O
4.FL.30Asbolane
(Ni,Co)
 
2-x
Mn
4+
 
(O,OH)
 
4
 · nH
 
2
O
4.FL.35Buserite
Na
 
4
Mn
 
14
O
 
27
 · 21H
 
2
O
4.FL.40Ranciéite
(Ca,Mn)Mn
 
4
O
 
9
 · 3H
 
2
O
4.FL.40Takanelite
(Mn,Ca)Mn
 
4
O
 
9
 · H
 
2
O
4.FL.45Birnessite
(Na,Ca)
 
0.5
(Mn
4+
 
,Mn
3+
 
)
 
2
O
 
4
 · 1.5H
 
2
O
4.FL.55Cianciulliite
Mn(Mg,Mn)
 
2
Zn
 
2
(OH)
 
10
 · 2-4H
 
2
O
4.FL.60Jensenite
Cu
 
3
[TeO
 
6
] · 2H
 
2
O
4.FL.65Leisingite
Cu(Mg,Cu,Fe,Zn)
 
2
[TeO
 
6
] · 6H
 
2
O
4.FL.70Akdalaite
4Al
 
2
O
 
3
 · H
 
2
O
4.FL.75Cafetite
(Ca,Mg)(Fe,Al)
 
2
Ti
 
4
O
 
12
 · 4H
 
2
O
4.FL.80Mourite
UMo
 
5
O
 
12
(OH)
 
10
4.FL.85Deloryite
Cu
 
4
(UO
 
2
)(MoO
 
4
)
 
2
(OH)
 
6
Related Minerals - Hey's Index Grouping:

- +
7.20.1Wüstite
FeO
7.20.2Magnetite
Fe
2+
 
Fe
3+
2
O
 
4
7.20.3Maghemite
Fe
3+
2
O
 
3
7.20.4Hematite
Fe
 
2
O
 
3
7.20.5Goethite
α-Fe
3+
 
O(OH)
7.20.6Akaganeite
β-Fe
3+
 
O(OH,Cl)
7.20.7Feroxyhyte
Fe
3+
 
O(OH)
7.20.8Lepidocrocite
γ-Fe
3+
 
O(OH)
7.20.9Ferrihydrite
Fe
3+
5
O
 
3
(OH)
 
9
7.20.10Amakinite
(Fe
2+
 
,Mg)(OH)
 
2
7.20.11Magnesioferrite
MgFe
3+
2
O
 
4
7.20.13Srebrodolskite
Ca
 
2
Fe
3+
2
O
 
5
7.20.14Hercynite
Fe
2+
 
Al
 
2
O
 
4
7.20.15Brownmillerite
Ca
 
2
(Al,Fe
3+
 
)
 
2
O
 
5

Other Names for Muskoxite

Synonyms:
IMA1967-043
Other Languages:
German:Muskoxit
Spanish:Muskoxita

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 Muskoxite

Reference List:

- +
American Mineralogist (1969): 54: 684-696.

Internet Links for Muskoxite

Search Engines:
  • Look for Muskoxite on Google
  • Look for Muskoxite images on Google
    • External Links:
  • Look for Muskoxite on Webmineral
  • Look for Muskoxite on Athena Mineralogy
  • Look for Muskoxite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Muskoxite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Search for Muskoxite from all mineral dealers at minfind.com
  • Edwards Minerals - Fine Specimens
  • Fine Minerals from Weinrich Minerals, Inc.
  • Search for - Muskoxite - on e-Rocks Mineral Sales & Auctions
  • Fabre Minerals - search for Muskoxite specimens
  • Search for minerals at Heliodor
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • webminerals
  • Buy fine minerals and gemstones from Pala International
  • The Arkenstone - Fine Minerals
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    • Localities for Muskoxite

    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.
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    (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.
    Canada
     
    • Northwest Territories
      • Coppermine River area
    		American Mineralogist (1969): 54: 684-696.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 18th Jun 2011 14:21:09
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