Szomolnokite Mineral Data (original) (raw)
General Szomolnokite Information
Chemical Formula:
Fe++SO4•(H2O)
Composition:
Molecular Weight = 169.93 gm
Iron 32.87 % Fe 42.28 % FeO
Hydrogen 1.19 % H 10.60 % H2O
Sulfur 18.87 % S 47.12 % SO3
Oxygen 47.08 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Fe2+(SO4)•(H2O)
Environment:
Secondary mineral formed in pyrite-rich oxidized sulfide deposits, typically under highly acid and arid conditions.
IMA Status:
Valid Species (Pre-IMA) 1877
Locality:
Smolnik (Szomolnok), 16 km northeast of Roznava, Slovakia. Link to MinDat.org Location Data.
Name Origin:
Named for the locality.
Name Pronunciation:
Szomolnokite + Pronunciation 
Synonym:
ICSD 71345
PDF 45-1365
Szomolnokite Image
Images:
 |
Szomolnokite Voltaite Comments: Whitish crystalline crust of voltaite on crystals of brown szomolnokite. Location: Alcaparrosa Mine, Cerritos Bayos, Chile.Scale: Picture size 1 cm. © John Veevaert |
|---|
Images:
Szomolnokite Crystallography
Axial Ratios:
a:b:c =1.0208:1:0.9538
Cell Dimensions:
a = 7.624, b = 7.468, c = 7.123, Z = 4; beta = 115.867° V = 364.92 Den(Calc)= 3.09
Crystal System:
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/a
X Ray Diffraction:
By Intensity(I/Io): 3.44(1), 3.12(0.4), 2.52(0.35),
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
| | 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 Szomolnokite
Cleavage:
{???} Indistinct
Color:
Bluish, Colorless, Yellow, Yellow brown, Light blue.
Density:
3.03 - 3.07, Average = 3.05
Diaphaneity:
Transparent to Translucent
Fracture:
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Hardness:
2.5 - Finger Nail
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Szomolnokite
Gladstone-Dale:
CI meas= -0.031 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.018 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2025,KPDmeas= 0.2051,KC= 0.1989
Ncalc = 1.6 - 1.61
Optical Data:
Biaxial (+), a=1.591, b=1.623, g=1.663, bire=0.0720, 2V(Calc)=86, 2V(Meas)=80.
Calculated Properties of Szomolnokite
Electron Density:
Bulk Density (Electron Density)=3.05 gm/cc
note: Specific Gravity of Szomolnokite =3.09 gm/cc.
Fermion Index:
Fermion Index = 0.0086105327
Boson Index = 0.9913894673
Photoelectric:
PESzomolnokite = 10.85 barns/electron
U=PESzomolnokite x rElectron Density= 33.14 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Szomolnokite is Not Radioactive
Szomolnokite Classification
Dana Class:
29.06.02.02 (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 Szomolnokite 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 Szomolnokite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST
Search for Szomolnokite using:
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]
Visit our Advertisers for Szomolnokite :
A Bijoux Google Search for Szomolnokite
Adam's Minerals Google Search for Szomolnokite
Cape Minerals Google Search for Szomolnokite
Dakota Matrix Minerals Google Search for Szomolnokite
Excalibur Mineral Corp. Google Search for Szomolnokite
Exceptional Minerals Google Search for Szomolnokite
John Betts Fine Minerals Search for Szomolnokite
McDougall Minerals Google Search for Szomolnokite
Mineral News Website Link
Rock and Mineral Shows Google Search for Szomolnokite
Weinrich Minerals, Inc. Google Search for Szomolnokite
Ask about Szomolnokite 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 Espa�ol
Print or Cut-and-Paste your Szomolnokite Specimen Label here :
Szomolnokite
Fe++SO4•(H2O)
Dana No: 29.06.02.02 Strunz No: 07.CB.05
Locality:
Notes: