Zincobotryogen Mineral Data

Zincobotryogen Mineral Data +

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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)

IMA Status:

Approved IMA 1964

Locality:

Link to MinDat.org Location Data.

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
A - Atoms On/Off
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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

Diaphaniety:

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

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:

r_electron=2.27 gm/cc
note: r_{Zincobotryogen}=2.23 gm/cc.

Fermion Index

Fermion Index = 0.00931
Boson Index = 0.99069

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Zincobotryogen is Not Radioactive

Zincobotryogen Classification

Dana Class:

31.9.6.2 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.9)where (A+ B++) (XO4) Zq·x(H2O)

(31.9.6)Dana Group

31.9.6.1 Botryogen MgFe(SO4)2(OH)·7(H2O) P 2₁/n 2/m

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

31.9.6.3 Xitieshanite Fe(SO4)(OH)·7(H2O) P 2₁/a 2/m

Strunz Class:

VI/D.10-20 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size

VI/D.10 - Copiapite group, Botryogen - Chaidamuite

VI/D.10-10 Botryogen MgFe(SO4)2(OH)·7(H2O) P 2₁/n 2/m

VI/D.10-20 Zincobotryogen (Zn,Mg,Mn)Fe(SO4)2(OH)·7(H2O) P 2₁/n 2/m

VI/D.10-30 Calciocopiapite CaFe4(SO4)6(OH)2·19(H2O) P1 1

VI/D.10-40 Magnesiocopiapite MgFe4(SO4)6(OH)2·20(H2O) P1 1

VI/D.10-50 Copiapite FeFe4(SO4)6(OH)2·20(H2O) P1 1

VI/D.10-60 Cuprocopiapite CuFe4(SO4)6(OH)2·20(H2O) P1 1

VI/D.10-70 Zincocopiapite ZnFe4(SO4)6(OH)2·18(H2O) P1 1

VI/D.10-80 Aluminocopiapite Al2/3Fe4(SO4)6O(OH)2·20(H2O) P1 1

VI/D.10-90 Ferricopiapite Fe2/3Fe4(SO4)6(OH)2·20(H2O) P1 1

VI/D.10-100 Guildite CuFe(SO4)2(OH)·4(H2O) P 2₁/m 2/m

VI/D.10-110 Chaidamuite (Zn,Fe)Fe(SO4)2(OH)·4(H2O) P1 1

Other Zincobotryogen Information

References:

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 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

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Zincobotryogen

(Zn,Mg,Mn)Fe+++(SO4)2(OH)·7(H2O)
Dana No: 31.9.6.2 Strunz No: VI/D.10-20
Locality:

Notes: