Kalistrontite Mineral Data
General Kalistrontite Information
Chemical Formula:
K2Sr(SO4)2
Composition:
Molecular Weight = 357.94 gm
Potassium 21.85 % K 26.32 % K2 O
Strontium 24.48 % Sr 28.95 % SrO
Sulfur 17.92 % S 44.74 % SO3
Oxygen 35.76 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
K2 Sr(SO4 )2
Environment:
Drillhole into anhydrite beds, probably formed by the reaction of sylvite with strontium-bearing solutions.
IMA Status:
Approved IMA 1962
Locality:
Alshtan, Sterlitamak district, southwestern Ural Mountains, Russia. Link to MinDat.org Location Data.
Name Origin:
Named for the potassium, KALIum, and STRONTium in the composition.
Name Pronunciation:
Kalistrontite + Pronunciation
Kalistrontite Crystallography
Axial Ratios:
a:c = 1:3.79816
Cell Dimensions:
a = 5.45, c = 20.7, Z = 3; V = 532.47 Den(Calc)= 3.35
Crystal System:
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3 m
X Ray Diffraction:
By Intensity(I/Io ): 3.12(1), 1.904(0.9), 2.73(0.8),
Physical Properties of Kalistrontite
Cleavage:
{0001} Perfect
Color:
Colorless.
Density:
3.2
Diaphaneity:
Transparent
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Hardness:
2 - Gypsum
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Kalistrontite
Gladstone-Dale:
CI meas = -0.011 (Superior) - where the CI = (1-KPDmeas /KC ) CI calc = 0.034 (Excellent) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.1669,KPDmeas = 0.1747,KC = 0.1727 Ncalc = 1.55 - 1.58
Optical Data:
Uniaxial (-), e=1.549, w=1.569, bire=0.0200.
Calculated Properties of Kalistrontite
Electron Density:
Bulk Density (Electron Density)=3.08 gm/cc note: Specific Gravity of Kalistrontite =3.20 gm/cc.
Fermion Index:
Fermion Index = 0.01 Boson Index = 0.99
Photoelectric:
PEKalistrontite = 30.27 barns/electronU=PEKalistrontite x r electron = 93.08 barns/cc.
Radioactivity:
GRapi = 302.91 (Gamma Ray American Petroleum Institute Units)
Concentration of Kalistrontite per GRapi unit = 0.33 (%)
Estimated Radioactivity from Kalistrontite - barely detectable
Kalistrontite Classification
Dana Class:
28.04.03.02 (28) Anhydrous Acid and Sulfates
(28.04) with miscellaneous formulae
(28.04.03) Dana Group
28.04.03.01 Palmierite (K,Na)2Pb(SO4)2 R 3 m 3 2/m
28.04.03.02 Kalistrontite K2Sr(SO4)2 R 3 m 3 2/m
Strunz Class:
07.AD.40 07 - SULFATES (SELENATES, TELLURATES)
07.A - Sulfates (selenates, etc.) without Additional Anions, without H2O
07.AD -With only large cations
07.AD.40 Kalistrontite K2Sr(SO4)2 R 3 m 3 2/m
07.AD.40 Palmierite (K,Na)2Pb(SO4)2 R 3 m 3 2/m
Other Kalistrontite 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 Kalistrontite :
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
Search for Kalistrontite using:
[AOL ]
[Bing ]
[Dog Pile ]
[GeoScienceWorld ]
[HotBot ]
[Ixquick ]
[Lycos ]
[MAMMA ]
[Scirus ]
[Teoma ]
[WebCrawler ]
[Wikipedia ]
[YAHOO ]
Visit our Advertisers for Kalistrontite :
Ask about Kalistrontite 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 Kalistrontite Specimen Label here :
Kalistrontite
K2Sr(SO4)2
Dana No: 28.04.03.02 Strunz No: 07.AD.40
Locality:
Notes:
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.