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Kieserite Mineral Data

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General Kieserite Information

Help on Chemical Formula: Chemical Formula: MgSO4•(H2O)
Help on Composition: Composition: Molecular Weight = 138.38 gm
   Magnesium  17.56 %  Mg   29.13 % MgO
   Hydrogen    1.46 %  H    13.02 % H2O
   Sulfur     23.17 %  S    57.86 % SO3
   Oxygen     57.81 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg(SO4)•(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1860
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after D. G. Kieserr. President of the Academy in Jena, Germany (1770-1826).
Help on Name Pronunciation: Name Pronunciation: Kieserite + Pronunciation Say KIESERITE
Help on Synonym: Synonym: ICSD 68345
  PDF 33-882
 

Kieserite Image

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  Kieserite

Comments: Translucent crystalline mass of kieserite with white alteration products.
Location: Stassfurt, Sachsen-Anhalt, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kieserite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8949:1:0.9779
Help on Cell Dimensions: Cell Dimensions: a = 6.9, b = 7.71, c = 7.54, Z = 4; beta = 116.17° V = 360.00 Den(Calc)= 2.55
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.409(1), 3.331(0.9), 4.84(0.9),
Help on Forms: Forms:

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Drag1 - Manipulate Crystal
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Help on Above

Forms: ( 1 1 1) ( 1 1 0) ( 1 1 2)

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Physical Properties of Kieserite

Help on Cleavage: Cleavage: {110} Perfect, {111} Perfect
Help on Color: Color: Colorless, Green yellow, Gray white, Yellowish, White.
Help on Density: Density: 2.57
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: white
 

Optical Properties of Kieserite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.036 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.044 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.214,KPDmeas= 0.2123,KC= 0.2049
Ncalc = 1.52 - 1.53
Help on Optical Data: Optical Data: Biaxial (+), a=1.52, b=1.533, g=1.584, bire=0.0640, 2V(Calc)=56, 2V(Meas)=55.
 

Calculated Properties of Kieserite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.60 gm/cc
note: Specific Gravity of Kieserite =2.57 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEKieserite = 1.82 barns/electron
U=PEKieserite x rElectron Density= 4.73 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kieserite is Not Radioactive
 

Kieserite Classification
Help on Dana Class: Dana Class: 29.06.02.01 (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
Help on Strunz Class: 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 Kieserite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Kieserite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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Kieserite

MgSO4•(H2O)
Dana No: 29.06.02.01 Strunz No: 07.CB.05
Locality:

 

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