Zincobotryogen Mineral Data

General Zincobotryogen Information

Chemical Formula:

(Zn,Mg,Mn)Fe+++(SO4)2(OH)•7(H2O)

Composition:

Molecular Weight = 443.11 gm

Magnesium 1.65 % Mg 2.73 % MgO

Manganese 1.24 % Mn 1.60 % MnO

Zinc 8.85 % Zn 11.02 % ZnO

Iron 12.60 % Fe 18.02 % Fe₂O₃

Hydrogen 3.41 % H 30.49 % H₂O

Sulfur 14.47 % S 36.14 % SO₃

Oxygen 57.77 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn_0.6Mg_0.3Mn²⁺_0.1Fe³⁺(SO₄)₂(OH)•7(H₂O)

Environment:

Secondary mineral formed in the oxidation zone, typically in an arid climate.

IMA Status:

Approved IMA 1964

Locality:

Undisclosed Pb-Zn deposit [Xitieshan mine, south of Mt. Qilianshan, Chaidamu], Qinghai Province, China Link to MinDat.org Location Data.

Name Origin:

Named for its dominant content of zinc and relation to botryogen.

Name Pronunciation:

Zincobotryogen + Pronunciation

Zincobotryogen Image

Images:

Zincobotryogen

Comments: Translucent bright yellow crystalline zincobotryogen.
Location: Bisbee, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zincobotryogen Crystallography

Axial Ratios:

a:b:c =0.5885:1:0.4032

Cell Dimensions:

a = 10.488, b = 17.819, c = 7.185, Z = 4; beta = 100.833° V = 1,318.84 Den(Calc)= 2.23

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 9.01(1), 5.24(0.8), 3.24(0.6),

Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
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Susse P , Acta Crystallographica, Section B , 24 (1968) p.760-767, Die kristallstruktur des botryogens, Locality: Rammelsberg mine near Goslar, Germany

Physical Properties of Zincobotryogen

Color:

Orange red.

Density:

2.201

Diaphaneity:

Transparent to Translucent

Hardness:

2.5 - Finger Nail

Luster:

Vitreous - Greasy

Streak:

light yellow

Optical Properties of Zincobotryogen

Gladstone-Dale:

CI meas= -0.016 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2511,KPDmeas= 0.2544,KC= 0.2504
Ncalc = 1.55 - 1.56

Optical Data:

Biaxial (+), a=1.542, b=1.551, g=1.587, bire=0.0450, 2V(Calc)=56, 2V(Meas)=54.

Calculated Properties of Zincobotryogen

Electron Density:

Bulk Density (Electron Density)=2.27 gm/cc
note: Specific Gravity of Zincobotryogen =2.23 gm/cc.

Fermion Index:

Fermion Index = 0.009315642
Boson Index = 0.990684358

Photoelectric:

PE_{Zincobotryogen}= 9.09 barns/electron
U=PE_{Zincobotryogen} x rElectron Density= 20.60 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zincobotryogen is Not Radioactive

Zincobotryogen Classification

Dana Class:

31.09.06.02 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.09)where (A+ B++) (XO4) Zq·x(H2O)

(31.09.06)Botryogen Group

31.09.06.01 Botryogen MgFe(SO4)2(OH)•7(H2O) P 2₁/n 2/m

31.09.06.02 Zincobotryogen (Zn,Mg,Mn)Fe(SO4)2(OH)•7(H2O) P 2₁/n 2/m

31.09.06.03 Xitieshanite Fe(SO4)(Cl)•7(H2O) P 2₁/a 2/m

Strunz Class:

07.DC.25 07 - SULFATES (SELENATES, TELLURATES)

07.D - Sulfates (selenates, etc.) with additional anions, with H2O

07.DC -With only medium-sized cations; chains of corner-sharing octahedra

07.DC.25 Botryogen MgFe(SO4)2(OH)•7(H2O) P 2₁/n 2/m

07.DC.25 Zincobotryogen (Zn,Mg,Mn)Fe(SO4)2(OH)•7(H2O) P 2₁/n 2/m

Other Zincobotryogen Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Zincobotryogen :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Zincobotryogen Specimen Label here :

Zincobotryogen

(Zn,Mg,Mn)Fe+++(SO4)2(OH)•7(H2O)
Dana No: 31.09.06.02 Strunz No: 07.DC.25
Locality:

Notes: