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Osakaite

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Formula:
Zn
 
4
(SO
 
4
)(OH)
 
6
 · 5H
 
2
O
System:Triclinic
Name:named for type locality


New structure type; known as a synthetic compound (Bear, 1986).
Related to namuwite.

Compare also Unnamed (Basic Zinc Sulfate Hydrate).

Classification of Osakaite

IMA status:Approved 2006
Nickel-Strunz 10th (pending) edition ID:7.DE.40

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified
Dana 8th edition ID:31.4.7.2

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
4 : (AB)4(XO4)Zq·xH2O
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Type Occurrence of Osakaite

Type Locality:Hirao mine, Onsen-cho, Minoo, Osaka Prefecture, Kinki Region, Honshu Island, Japan
Geological Setting of type material:Oxide zone of hydrothermal vein cutting shale at abandoned zinc mine.

Crystallography of Osakaite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 8.358Å, b = 8.337Å, c = 11.027Å
α = 94.97°, β = 83.16°, γ = 119.6°
Ratio:a:b:c = 1.003 : 1 : 1.323
Unit Cell Volume:V 662.99 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
10.96 (100)
5.47 (16)
3.642 (17)
3.229 (8)
2.717 (21)
2.663 (8)
2.562 (9)
1.574 (18)

Chemical Properties of Osakaite

Formula:
Zn
 
4
(SO
 
4
)(OH)
 
6
 · 5H
 
2
O
Essential elements:H, O, S, Zn
All elements listed in formula:H, O, S, Zn

Relationship of Osakaite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DE.05Mangazeite
Al
 
2
(SO
 
4
)(OH)
 
4
 · 3H
 
2
O
7.DE.10Carbonatecyanotrichite
Cu
 
4
Al
 
2
(CO
 
3
,SO
 
4
)(OH)
 
12
 · 2H
 
2
O
7.DE.10Cyanotrichite
Cu
 
4
Al
 
2
(SO
 
4
)(OH)
 
12
 · 2H
 
2
O
7.DE.10UKI-1975-(SO:AlCu)
(Cu, Al, SO
 
4
, H
 
2
O)
7.DE.15Schwertmannite
Fe
3+
16
(OH,SO
 
4
)
 
12-13
O
 
16
 · 10-12H
 
2
O
7.DE.20Tlalocite
Cu
 
10
Zn
 
6
(Te
6+
 
O
 
4
)
 
2
(Te
4+
 
O
 
3
)(OH)
 
25
Cl · 27H
 
2
O
7.DE.25Utahite
Cu
 
5
Zn
 
3
(TeO
 
4
)
 
4
(OH)
 
8
 · 7H
 
2
O
7.DE.35Coquandite
(SbO)
 
6
(SO
 
4
)O
 
2
 · H
 
2
O
7.DE.45Wilcoxite
MgAl(SO
 
4
)
 
2
F · 18H
 
2
O
7.DE.50Stanleyite
(V
4+
 
O)(SO
 
4
) · 6H
 
2
O
7.DE.55Mcalpineite
Cu
 
3
(Te
6+
 
O
 
6
) · H
 
2
O
7.DE.60Hydrobasaluminite
Al
 
4
(SO
 
4
)(OH)
 
10
 · 12-36H
 
2
O
7.DE.62Volaschioite
Fe
 
4
(SO
 
4
)O
 
2
(OH)
 
6
 · 2H
 
2
O
7.DE.65Zaherite
Al
 
12
(SO
 
4
)
 
5
(OH)
 
26
 · 20H
 
2
O
7.DE.70Lautenthalite
PbCu
 
4
(SO
 
4
)
 
2
(OH)
 
6
 · 3H
 
2
O
7.DE.75Camerolaite
Cu
 
4
Al
 
2
(HSbO
 
4
,SO
 
4
)(CO
 
3
)(OH)
 
10
 · 2H
 
2
O

Other Names for Osakaite

Synonyms:
IMA2006-049
Other Languages:
Japanese:大阪石

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 Osakaite

Reference List:

- +
Bear, I.J., Grey, I.E., Madsen, I.C., Newnham, I.E., Rogers, L.J. (1986): Structures of the basic zinc sulfates 3Zn(OH)2•ZnSO4•mH2O, m = 3 and 5. Acta Crystallographica, B42, 32-39.

Ohnishi, M., Kusachi, I., Kobayashi, S. (2007): Osakaite, Zn4SO4(OH)6•5H2O, a new mineral species from the Hirao mine, Osaka, Japan. Canadian Mineralogist, 45, 1511-1517.

Internet Links for Osakaite

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    • Localities for Osakaite

    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.
    Greece
     
    • Attikí (Attica; Attika) Prefecture
    		Lapis, 33 (2008), #4, 8.
    Japan
     
    • Honshu Island
      • Kinki Region
        • Osaka Prefecture
          • Minoo
            • Onsen-cho
    		Ohnishi, M., Kusachi, I., Kobayashi, S. (2007): Osakaite, Zn4SO4(OH)6•5H2O, a new mineral species from the Hirao mine, Osaka, Japan. Canadian Mineralogist, 45, 1511-1517.
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