Szmikite Mineral Data

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)

IMA Status:

Valid Species (Pre-IMA) 1877

Locality:

Link to MinDat.org Location Data.

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

Diaphaniety:

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

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:

r_electron=2.88 gm/cc
note: r_Szmikite=2.93 gm/cc.

Fermion Index

Fermion Index = 0.00165
Boson Index = 0.99835

Photoelectric:

PE_Szmikite= 9.37 barns/electron
U=PE_Szmikite x r_electron= 26.97 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Szmikite is Not Radioactive

Szmikite Classification

Dana Class:

29.6.2.3 (29)Hydrated Acid and Sulfates

(29.6)where A XO4 · x(H2O)

(29.6.2)Kieserite Group (Mono-hydrates)

29.6.2.1 Kieserite MgSO4·(H2O) C 2/c 2/m

29.6.2.2 Szomolnokite FeSO4·(H2O) A2/a 2/m

29.6.2.3 Szmikite MnSO4·(H2O) A2/a 2/m

29.6.2.4 Poitevinite (Cu,Fe,Zn)SO4·(H2O) P1 1

29.6.2.5 Gunningite (Zn,Mn)SO4·(H2O) A2/a 2/m

29.6.2.6 Dwornikite (Ni,Fe)SO4·(H2O) C 2/c 2/m

29.6.2.7 Cobaltkieserite! CoSO4·H2O C 2/c 2/m

Strunz Class:

VI/C.01-30 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size

VI/C.01 - Kieserite group

VI/C.01-10 Kieserite MgSO4·(H2O) C 2/c 2/m

VI/C.01-20 Szomolnokite FeSO4·(H2O) A2/a 2/m

VI/C.01-30 Szmikite MnSO4·(H2O) A2/a 2/m

VI/C.01-35 Cobaltkieserite! CoSO4·H2O C 2/c 2/m

VI/C.01-40 Dwornikite (Ni,Fe)SO4·(H2O) C 2/c 2/m

VI/C.01-50 Poitevinite (Cu,Fe,Zn)SO4·(H2O) P1 1

VI/C.01-60 Gunningite (Zn,Mn)SO4·(H2O) A2/a 2/m

VI/C.01-70 Sanderite MgSO4·2(H2O) Mono ? Mono

Other Szmikite 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 Szmikite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Szmikite

MnSO4·(H2O)
Dana No: 29.6.2.3 Strunz No: VI/C.01-30
Locality:

Notes: