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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.

Articles/Blogs about Jensenite

Internet Links for Jensenite

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  • Raman and XRD data at RRUFF project
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  • Jensenite details from Handbook of Mineralogy (PDF)
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    Localities for Jensenite

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    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.
    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]
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