Hannebachite Mineral Data

General Hannebachite Information

Chemical Formula:

2CaSO3•(H2O)

Composition:

Molecular Weight = 258.30 gm

Calcium 31.03 % Ca 43.42 % CaO

Hydrogen 0.78 % H 6.97 % H₂O

Sulfur 24.83 % S 49.61 % SO₂

Oxygen 43.36 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂(SO₃)₂•(H₂O)

Environment:

Lining cavities in blocks of melilite-nepheline-leucitite at the base of a volcano.

IMA Status:

Approved IMA 1985

Locality:

Hannebacher Ley volcano, one km east-northeast of Hannebach, and at Kalem, near Birresborn, Eifel district, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Hannebachite + Pronunciation

Synonym:

ICSD 21033

PDF 39-725

Hannebachite Image

Images:

Hannebachite

Comments: Small .5 mm crystals of colorless hannebachite on matrix.
Location: Hannebach, Niederzissen, Eifel Mts, Rhineland-Palatinate, Germany. Scale: 35x35x24 mm.
© John Betts - Fine Minerals

Hannebachite Crystallography

Axial Ratios:

a:b:c =0.6617:1:1.0883

Cell Dimensions:

a = 6.473, b = 9.782, c = 10.646, Z = 4; V = 674.09 Den(Calc)= 2.55

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbna

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

By Intensity(I/I_o): 3.15(1), 2.617(0.9), 3.79(0.8),

Physical Properties of Hannebachite

Cleavage:

{???} Perfect

Color:

Colorless.

Density:

2.52

Diaphaneity:

Transparent

Hardness:

3.5 - Copper Penny

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Hannebachite

Gladstone-Dale:

CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.023 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2392,KPDmeas= 0.2421,KC= 0.2449
Ncalc = 1.62

Optical Data:

Biaxial (+), a=1.596, b=1.6, g=1.634, bire=0.0380, 2V(Calc)=40, 2V(Meas)=38.

Calculated Properties of Hannebachite

Electron Density:

Bulk Density (Electron Density)=2.54 gm/cc
note: Specific Gravity of Hannebachite =2.52 gm/cc.

Fermion Index:

Fermion Index = 0.0024903669
Boson Index = 0.9975096331

Photoelectric:

PE_Hannebachite= 5.24 barns/electron
U=PE_Hannebachite x rElectron Density= 13.28 barns/cc.

Radioactivity:

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

Hannebachite Classification

Dana Class:

34.02.05.01 (34)Selenites - Tellurites - Sulfites

(34.02)as A++ XO3 ï¿½ x(H2O)

(34.02.05)Dana Group

34.02.05.01 Hannebachite 2CaSO3•(H2O) Pbna 2/m 2/m 2/m

34.02.05.02 Gravegliaite Mn(SO3)•3(H2O) P nma 2/m 2/m 2/m

Strunz Class:

04.JE.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JE -Sulfites

04.JE.10 Hannebachite 2CaSO3•(H2O) Pbna 2/m 2/m 2/m

Other Hannebachite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Am.Min.,Vol.73,p928,1988) OPTIC PROP.(Am.Min.,Vol.73,p928,1988)

See Also:

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

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Hannebachite

2CaSO3•(H2O)
Dana No: 34.02.05.01 Strunz No: 04.JE.10
Locality:

Notes:

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