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Nakauriite

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Lobminggraben, St Stefan, Kraubath, Leoben, Styria, Austria
© Elmar Lackner

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Formula:
Cu
 
8
[(OH)
 
6
|CO
 
3
|(SO
 
4
)
 
4
] · 48H
 
2
O
System:OrthorhombicColour:Translucent blue
This page provides mineralogical data about Nakauriite.

Classification of Nakauriite

IMA status:Approved
Strunz 8th edition ID:6/D.03-90
Nickel-Strunz 10th (pending) edition ID:7.DG.30

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
G : With large and medium-sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3
Dana 8th edition ID:32.4.1.1

32 : COMPOUND SULFATES
4 : Hydrated Compound Sulfates containing Hydroxyl or Halogen
Hey's CIM Ref.:12.2.6

12 : Carbonates with other anions
2 : Carbonates with sulphate
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Type Occurrence of Nakauriite

Type Locality:Nakauri mine, Shinshiro city, Aichi prefecture, Chubu Region, Honshu Island, Japan
Year of Discovery:1976

Physical Properties of Nakauriite

Colour:Translucent blue

Crystallography of Nakauriite

Crystal System:Orthorhombic
Cell Parameters:a = 14.58Å, b = 11.47Å, c = 16.22Å
Ratio:a:b:c = 1.271 : 1 : 1.414
Unit Cell Volume:V 2,712.51 ų (Calculated from Unit Cell)

Optical Data of Nakauriite

Type:Biaxial (-)
RI values: nα = 1.585 nβ = 1.604 nγ = 1.612
2V:Measured: 65° , Calculated: 64°
Maximum Birefringence:δ = 0.027

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

Chemical Properties of Nakauriite

Formula:
Cu
 
8
[(OH)
 
6
|CO
 
3
|(SO
 
4
)
 
4
] · 48H
 
2
O
Essential elements:C, Cu, H, O, S
All elements listed in formula:C, Cu, H, O, S

Relationship of Nakauriite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DG.05Darapskite
Na
 
3
NO
 
3
SO
 
4
·H
 
2
O
7.DG.10Clinoungemachite
(Na, K, Fe, SO
 
4
)
7.DG.10Humberstonite
Na
 
7
K
 
3
Mg
 
2
(SO
 
4
)
 
6
(NO
 
3
)
 
2
·6H
 
2
O
7.DG.10Ungemachite
K
 
3
Na
 
8
Fe(SO
 
4
)
 
6
(NO
 
3
)
 
2
·6H
 
2
O
7.DG.15Bentorite
Ca
 
6
(Cr
3+
 
,Al)
 
2
[(OH)
 
4
|SO
 
4
]
 
3
 · 26H
 
2
O
7.DG.15Charlesite
Ca
 
6
(Al,Si)
 
2
[(OH,O)
 
12
|B(OH)
 
4
|(SO
 
4
)
 
2
] · 26H
 
2
O
7.DG.15Ettringite
Ca
 
6
Al
 
2
[(OH)
 
4
|SO
 
4
]
 
3
 · 26H
 
2
O
7.DG.15Jouravskite
Ca
 
6
Mn
3+
2
[(OH)
 
4
|(SO
 
4
,CO
 
3
)]
 
3
 · 26H
 
2
O
7.DG.15Sturmanite
Ca
 
6
(Fe
3+
 
,Al,Mn
3+
 
)
 
2
[(OH)
 
12
|B(OH)
 
4
|(SO
 
4
)
 
2
] · 25H
 
2
O
7.DG.15Thaumasite
Ca
 
3
[CO
 
3
|SO
 
4
|Si(OH)
 
6
] · 12H
 
2
O
7.DG.15Carraraite
Ca
 
3
Ge(OH)
 
6
(SO
 
4
)(CO
 
3
)·12H
 
2
O
7.DG.15Buryatite
Ca
 
3
(Si,Fe,Al)[SO
 
4
][B(OH)
 
4
](OH)
 
5
O•
 
12
H
 
2
O
7.DG.20Rapidcreekite
Ca
 
2
[CO
 
3
|SO
 
4
] · 4H
 
2
O
7.DG.20Korkinoite
Ca, SO
 
4
, H
 
2
O reported
7.DG.25Tatarskite
Ca
 
6
Mg
 
2
(SO
 
4
)
 
2
(CO
 
3
)
 
2
Cl
 
4
(OH)
 
4
·7H
 
2
O
7.DG.35Chessexite
(Na,K)
 
4
Ca
 
2
(Mg,Zn)
 
3
Al
 
8
[(SO
 
4
)
 
10
|(SiO
 
4
)
 
2
] · 40H
 
2
O
7.DG.40Carlosruizite
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SeO
 
4
)
 
12
(IO
 
3
)
 
12
·12H
 
2
O
7.DG.40Fuenzalidaite
K
 
6
(Na,K)
 
4
Na
 
6
Mg
 
10
(SO
 
4
)
 
12
(IO
 
3
)
 
12
·12H
 
2
O
7.DG.45Chelyabinskite
(Ca,Mg)
 
3
[(SO
 
4
,CO
 
3
)
 
2
|Si(OH)
 
6
] · 9H
 
2
O (?)
Related Minerals - Hey's Index Grouping:

- +
12.2.1Burkeite
Na
 
6
CO
 
3
(SO
 
4
)
 
2
12.2.2Hanksite
Na
 
22
K(SO
 
4
)
 
9
(CO
 
3
)
 
2
Cl
12.2.3Tychite
Na
 
6
Mg
 
2
SO
 
4
(CO
 
3
)
 
4
12.2.4Motukoreaite
NaMg
 
19
Al
 
12
(CO
 
3
)
 
6.5
(SO
 
4
)
 
4
(OH)
 
54
·28H
 
2
O
12.2.5Ferrotychite
Na
 
6
(Fe,Mn,Mg)
 
2
SO
 
4
(CO
 
3
)
 
4
12.2.7Carbonatecyanotrichite
Cu
 
4
Al
 
2
[(OH)
 
12
|(CO
 
3
,SO
 
4
)] · 2H
 
2
O
12.2.8Rapidcreekite
Ca
 
2
[CO
 
3
|SO
 
4
] · 4H
 
2
O
12.2.9Tatarskite
Ca
 
6
Mg
 
2
(SO
 
4
)
 
2
(CO
 
3
)
 
2
Cl
 
4
(OH)
 
4
·7H
 
2
O
12.2.10Schulenbergite
(Cu,Zn)
 
7
[(OH)
 
10
|(SO
 
4
,CO
 
3
)
 
2
] · 3H
 
2
O
12.2.11Leadhillite
Pb
 
4
SO
 
4
(CO
 
3
)
 
2
(OH)
 
2
12.2.12Macphersonite
Pb
 
4
SO
 
4
(CO
 
3
)
 
2
(OH)
 
2
12.2.13Susannite
Pb
 
4
SO
 
4
(CO
 
3
)
 
2
(OH)
 
2
12.2.14Wherryite
Pb
 
7
Cu
 
2
(SO
 
4
)
 
4
(SiO
 
4
)
 
2
(OH)
 
2
12.2.15Caledonite
Cu
 
2
Pb
 
5
[(OH)
 
6
|CO
 
3
|(SO
 
4
)
 
3
]
12.2.16Nasledovite
PbMn
 
3
Al
 
4
(CO
 
3
)
 
4
SO
 
4
O
 
5
·5H
 
2
O
12.2.17Jouravskite
Ca
 
6
Mn
3+
2
[(OH)
 
4
|(SO
 
4
,CO
 
3
)]
 
3
 · 26H
 
2
O
12.2.18Schröckingerite
NaCa
 
3
(UO
 
2
)[F|(CO
 
3
)
 
3
|SO
 
4
] · 10H
 
2
O
12.2.19Manganotychite
Na
 
6
Mn
 
2
SO
 
4
(CO
 
3
)
 
4
12.2.20Hauckite
Fe
3+
3
(Mg,Mn
2+
 
)
 
24
Zn
 
18
[(OH)
 
81
|(CO
 
3
)
 
2
|(SO
 
4
)
 
4
]
12.2.21Paraotwayite
Ni(OH)
 
2-x
(SO
 
4
,CO
 
3
)
 
0.5x
12.2.22Carrboydite
(Ni,Cu)
 
14
Al
 
9
[(OH)
 
43
|(SO
 
4
,CO
 
3
)
 
6
] · 7H
 
2
O
12.2.23Mountkeithite
(Mg,Ni)
 
11
(Fe
3+
 
,Cr
3+
 
,Al)
 
3
[(OH)
 
24
|(SO
 
4
,CO
 
3
)
 
3.5
] · 11H
 
2
O
12.2.24Camerolaite
Cu
 
4
Al
 
2
[(OH)
 
10
|CO
 
3
|(HSbO
 
4
,SO
 
4
)] · 2H
 
2
O

Other Names for Nakauriite

Synonyms:
IMA1976-016
Other Languages:
German:Nakauriit
Spanish:Nakauriita

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 Nakauriite

Reference List:American Mineralogist (1977): 594.

American Mineralogist (1982): 67: 167.

Internet Links for Nakauriite

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    Localities for Nakauriite

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