Kieserite Mineral Data

Advertisment

Updated weekly, for the collector, educator, and researcher since 1996. Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome

General Kieserite Information

Chemical Formula:

MgSO4•(H2O)

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

Empirical Formula:

Mg(SO₄)•(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1860

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named after D. G. Kieserr. President of the Academy in Jena, Germany (1770-1826).

Name Pronunciation:

Kieserite + Pronunciation

Synonym:

ICSD 68345

PDF 33-882

Kieserite Image

Images:

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

Axial Ratios:

a:b:c =0.8949:1:0.9779

Cell Dimensions:

a = 6.9, b = 7.71, c = 7.54, Z = 4; beta = 116.17° V = 360.00 Den(Calc)= 2.55

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 3.409(1), 3.331(0.9), 4.84(0.9),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

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

Warning: this large pop-up is very compute intensive and may not work well with some computers.

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

Hawthorne F C , Groat L A , Raudsepp M , Ercit T S , Neues Jahrbuch fur Mineralogie, Abhandlungen , 157 (1987) p.121-132, Kieserite, Mg(SO4)(H2O), a titanite-group mineral, Locality: Wathlingen, Hanover, Germany

Physical Properties of Kieserite

Cleavage:

{110} Perfect, {111} Perfect

Color:

Colorless, Green yellow, Gray white, Yellowish, White.

Density:

2.57

Diaphaneity:

Transparent to Translucent

Fracture:

Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

3.5 - Copper Penny

Luster:

Vitreous - Dull

Streak:

white

Optical Properties of Kieserite

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

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

Electron Density:

Bulk Density (Electron Density)=2.60 gm/cc
note: Specific Gravity of Kieserite =2.57 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Kieserite= 1.82 barns/electron
U=PE_Kieserite x rElectron Density= 4.73 barns/cc.

Radioactivity:

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

Kieserite Classification

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

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

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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

Search for Kieserite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Kieserite :

Cape Minerals Google Search for Kieserite
Dakota Matrix Minerals Google Search for Kieserite
Excalibur Mineral Corp. Google Search for Kieserite
Exceptional Minerals Google Search for Kieserite
John Betts Fine Minerals Search for Kieserite
McDougall Minerals Google Search for Kieserite
Mineral News Website Link
Rock and Mineral Shows Google Search for Kieserite
Weinrich Minerals, Inc. Google Search for Kieserite

Ask about Kieserite 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 Kieserite Specimen Label here :

Kieserite

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

Notes: