Szmikite Mineral Data

General Szmikite Information

Chemical Formula:

MnSO4•(H2O)

Composition:

Molecular Weight = 169.02 gm

Manganese 32.50 % Mn 41.97 % MnO

Hydrogen 1.19 % H 10.66 % H₂O

Sulfur 18.97 % S 47.37 % SO₃

Oxygen 47.33 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺(SO₄)•(H₂O)

Environment:

Post-mining incrustation.

IMA Status:

Valid Species (Pre-IMA) 1877

Locality:

Baia Sprie (Felsob´nya) and in the Borza¸s gold mine, Gutai Mountains, Romainia. Link to MinDat.org Location Data.

Name Origin:

Named for Ignaz Nathaniel Szmik (1815-1881), Hungarian mining official at Felsobanya, Hungary (now Baia Sprie, Romania), who discovered the mineral.

Name Pronunciation:

Szmikite

Synonym:

ICSD 71344

PDF 33-906

Szmikite Image

Images:

Szmikite

Comments: Tan translucent szmikite.
Location: Calumet Mine, Galena Hill, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Szmikite Crystallography

Axial Ratios:

a:b:c =1.0059:1:0.924

Cell Dimensions:

a = 7.758, b = 7.712, c = 7.126, Z = 4; beta = 115.85° V = 383.69 Den(Calc)= 2.93

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/a

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

By Intensity(I/I_o): 3.499(1), 3.135(0.4), 4.9(0.35),

Crystal Structure:

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Wildner M , Giester G , Neues Jahrbuch fur Mineralogie, Monatshefte , 1991 (1991) p.296-306, The crystal structures of kieserite-type compounds., I. Crystal structures of Me(II)SO4*H2O (Me = Mn,Fe,Co,Ni,Zn), Locality: synthetic

Physical Properties of Szmikite

Cleavage:

{???} Good

Color:

Brown white, Gray white, Pink, Reddish.

Density:

2.845 - 3.21, Average = 3.02

Diaphaneity:

Transparent to Translucent

Fracture:

Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).

Hardness:

1.5 - Between Talc and Gypsum

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Szmikite

Gladstone-Dale:

CI meas= 0.029 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2035,KPDmeas= 0.197,KC= 0.2028
Ncalc = 1.58 - 1.65

Optical Data:

Biaxial (+), a=1.562, b=1.595, g=1.632, bire=0.0700, 2V(Calc)=90, 2V(Meas)=90.

Calculated Properties of Szmikite

Electron Density:

Bulk Density (Electron Density)=2.88 gm/cc
note: Specific Gravity of Szmikite =2.93 gm/cc.

Fermion Index:

Fermion Index = 0.0016518815
Boson Index = 0.9983481185

Photoelectric:

PE_Szmikite= 9.37 barns/electron
U=PE_Szmikite x rElectron Density= 26.97 barns/cc.

Radioactivity:

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

Szmikite Classification

Dana Class:

29.06.02.03 (29)Hydrated Acid and Sulfates

(29.06)where A XO4 · x(H2O)

(29.06.02)Kieserite Group (Mono-hydrates)

29.06.02.01 Kieserite MgSO4•(H2O) C 2/c 2/m

29.06.02.02 Szomolnokite FeSO4•(H2O) A2/a 2/m

29.06.02.03 Szmikite MnSO4•(H2O) A2/a 2/m

29.06.02.04 Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1

29.06.02.05 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m

29.06.02.06 Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m

29.06.02.07 Cobaltkieserite! CoSO4•H2O C 2/c 2/m

Strunz Class:

07.CB.05 07 - SULFATES (SELENATES, TELLURATES)

07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O

07.CB -With only medium-sized cations

07.CB.05 Gunningite (Zn,Mn)SO4•(H2O) A2/a 2/m

07.CB.05 Dwornikite (Ni,Fe)SO4•(H2O) C 2/c 2/m

07.CB.05 Kieserite MgSO4•(H2O) C 2/c 2/m

07.CB.05 Poitevinite (Cu,Fe,Zn)SO4•(H2O) P1 1

07.CB.05 Szomolnokite FeSO4•(H2O) A2/a 2/m

07.CB.05 Szmikite MnSO4•(H2O) A2/a 2/m

07.CB.05 Cobaltkieserite! CoSO4•H2O C 2/c 2/m

Other Szmikite 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 Szmikite :
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
15 - WWW-MINCRYST

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Ask about Szmikite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Szmikite

MnSO4•(H2O)
Dana No: 29.06.02.03 Strunz No: 07.CB.05
Locality:

Notes: