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Zincobotryogen

Big Photo

Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
© 2008, J. Weissman

Formula:
(Zn,Mg,Mn
2+
 
)Fe
3+
 
[OH|(SO
 
4
)
 
2
] · 7H
 
2
O
System:MonoclinicColour:Bright orange-red
Lustre:Vitreous, GreasyHardness:2½
Name:The name is derived from its zinc content and similarity to botryogen.


Reinvestigation needed.

Originally reported from Xitieshan Pb-Zn deposit, Dulan Co., Haixi Autonomous Prefecture, Qinghai (Chinghai) Province, China.

Classification of Zincobotryogen

IMA status:Published without Approval
Strunz 8th edition ID:6/D.10-20
Nickel-Strunz 10th (pending) edition ID:7.DC.25

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
C : With only medium-sized cations; chains of edge-sharing octahedra
Dana 8th edition ID:31.9.6.2

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
Hey's CIM Ref.:25.5.16

25 : Sulphates
5 : Sulphates of Zn and Hg
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Physical Properties of Zincobotryogen

Lustre:Vitreous, Greasy
Diaphaneity (Transparency):Translucent
Colour:Bright orange-red
Hardness (Mohs):2½

Crystallography of Zincobotryogen

Crystal System:Monoclinic

Optical Data of Zincobotryogen

Type:Biaxial (+)
RI values: nα = 1.542 nβ = 1.551 nγ = 1.587
2V:Measured: 54° , Calculated: 56°
Maximum Birefringence:δ = 0.045

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

Chemical Properties of Zincobotryogen

Formula:
(Zn,Mg,Mn
2+
 
)Fe
3+
 
[OH|(SO
 
4
)
 
2
] · 7H
 
2
O
Essential elements:Fe, H, O, S, Zn
All elements listed in formula:Fe, H, Mg, Mn, O, S, Zn

Relationship of Zincobotryogen to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DC.05Aluminite
Al
 
2
[(OH)
 
4
|SO
 
4
] · 7H
 
2
O
7.DC.05Meta-aluminite
Al
 
2
[(OH)
 
4
|SO
 
4
] · 5H
 
2
O
7.DC.10Butlerite
Fe
3+
 
[OH|SO
 
4
] · 2H
 
2
O
7.DC.10Parabutlerite
Fe
3+
 
[OH|SO
 
4
] · 2H
 
2
O
7.DC.15Fibroferrite
Fe
3+
 
[OH|SO
 
4
] · 5H
 
2
O
7.DC.20Xitieshanite
Fe
3+
 
[Cl|SO
 
4
] · 6H
 
2
O
7.DC.25Botryogen
MgFe
3+
 
[OH|(SO
 
4
)
 
2
] · 7H
 
2
O
7.DC.30Chaidamuite
ZnFe(SO
 
4
)
 
2
(OH)·4H
 
2
O
7.DC.30Guildite
CuFe
3+
 
[OH|(SO
 
4
)
 
2
] · 4H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
25.5.1Zinkosite
ZnSO
 
4
25.5.2Goslarite
ZnSO
 
4
·7H
 
2
O
25.5.3Namuwite
(Zn,Cu)
 
4
[(OH)
 
6
|SO
 
4
] · 4H
 
2
O
25.5.4Ktenasite
Zn(Cu,Zn)
 
4
[(OH)
 
6
|(SO
 
4
)
 
2
] · 6H
 
2
O
25.5.5Ramsbeckite
(Cu,Zn)
 
15
[(OH)
 
22
|(SO
 
4
)
 
4
] · 6H
 
2
O
25.5.6Boyleite
(Zn,Mg)SO
 
4
·4H
 
2
O
25.5.7Serpierite
Ca(Cu,Zn)
 
4
(SO
 
4
)
 
2
(OH)
 
6
·3H
 
2
O
25.5.8Orthoserpierite
Ca(Cu,Zn)
 
4
(SO
 
4
)
 
2
(OH)
 
6
·3H
 
2
O
25.5.9Zincaluminite
Zn
 
6
Al
 
6
[(OH)
 
13
|SO
 
4
]
 
2
 · 5H
 
2
O
25.5.10Glaucocerinite
(Zn,Cu)
 
10
Al
 
6
[(OH)
 
32
|(SO
 
4
)
 
3
] · 18H
 
2
O
25.5.11Gunningite
(Zn,Mn)SO
 
4
·H
 
2
O
25.5.12Chaidamuite
ZnFe(SO
 
4
)
 
2
(OH)·4H
 
2
O
25.5.13Bianchite
(Zn,Fe)SO
 
4
·6H
 
2
O
25.5.15Zincmelanterite
(Zn,Cu,Fe)SO
 
4
·7H
 
2
O
25.5.17Schuetteite
Hg
2+
3
[O
 
2
|SO
 
4
]
25.5.18Gianellaite
[Hg
 
2
N]
+
2
SO
 
4

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 Zincobotryogen

Reference List:Tu Kwang-chih, Li Hsi-lin, Hsieh Hsen-deh, and Yin Shu-sen (1964): Zincobotryogen and zincocopiapite, two new varieties of sulfate minerals. Ti Chih Hsueh Pao [Acta Geologica Sinica] 44(1), 99-101 (in Chinese with English abstract). - American Mineralogist (1964), 49, 1776 (abstract).

Yang Hexiong and Eu Pingqiu (1988): Crystal structure of zincobotryogen. Kuangwu Xuebao [Acta Mineralogica Sinica] 8(1), 1-12 (in Chinese with English abstract).

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    Localities for Zincobotryogen

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