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Jensenite

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Centennial Eureka Mine (Blue Rock), Tintic District, East Tintic Mts, Juab Co., Utah, USA
© Brent Thorne

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Formula:
Cu
 
3
[TeO
 
6
] · 2H
 
2
O
System:MonoclinicColour:Emerald green
Lustre:AdamantineHardness:3 - 4
Name:Named for Martin Jensen who first found the material
This page provides mineralogical data about Jensenite.

Classification of Jensenite

IMA status:Approved 1994
Strunz 8th edition ID:4/K.15-16
Nickel-Strunz 10th (pending) edition ID:4.FL.60

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 7th edition ID:33.2.6.1
Dana 8th edition ID:33.2.6.1

33 : SELENATES AND TELLURATES
2 : (AB)m(XO6)·xH2O, where x can equal zero
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Type Occurrence of Jensenite

Type Locality:Centennial Eureka Mine (Blue Rock), Tintic District, East Tintic Mts, Juab Co., Utah, USA
Place of Conservation of Type Material:Canadian Museum of Nature, Ottawa, Canada

Physical Properties of Jensenite

Lustre:Adamantine
Diaphaneity (Transparency):Transparent
Colour:Emerald green
Streak:Emerald green
Hardness (Mohs):3 - 4
Tenacity:Brittle
Cleavage:Imperfect/Fair
{_101}
Fracture:Irregular/Uneven
Density (calculated):4.76 g/cm3

Crystallography of Jensenite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/m {P1 1 21/m} {P21/m} {P1 21/m 1}
Cell Parameters:a = 9.224Å, b = 9.18Å, c = 7.6Å
β = 102.38°
Ratio:a:b:c = 1.005 : 1 : 0.828
Unit Cell Volume:V 628.58 ų (Calculated from Unit Cell)

Chemical Properties of Jensenite

Formula:
Cu
 
3
[TeO
 
6
] · 2H
 
2
O
Essential elements:Cu, H, O, Te
All elements listed in formula:Cu, H, O, Te
Common Impurities:Zn

Relationship of Jensenite 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
 
4
Fe(OH)
 
8
OCl·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.05Muskoxite
Mg
 
7
Fe
 
4
O
 
13
·10H
 
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.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

Other Names for Jensenite

Synonyms:
IMA1994-043
Other Languages:
German:Jensenit
Russian:Дженсенит
Spanish:Jensenita

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 Jensenite

Reference List:Mineralogical Record: 27: 464.

Canadian Mineralogist (1996): 34: 49-54, 55-59.

Internet Links for Jensenite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Jensenite in the Natural History Museum (London) online catalogue
  • Jensenite details from Handbook of Mineralogy (PDF)
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    Localities for Jensenite

    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.
    Mexico
     
    • Sonora
      • Mun. de Moctezuma
        • Moctezuma
    		RRUFF database XRD confirmed
    USA
     
    • Utah
      • Juab Co.
        • East Tintic Mts
          • Tintic District
    		[Can.Mineral.(1996) 34, 49-54; MinRec 27:464]
    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: 6th Nov 2009 07:38:09