Kalistrontite Mineral Data

General Kalistrontite Information

Chemical Formula:

K2Sr(SO4)2

Composition:

Molecular Weight = 357.94 gm

Potassium 21.85 % K 26.32 % K₂O

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:

K₂Sr(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 3m

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

By Intensity(I/I_o): 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:

PE_{Kalistrontite}= 30.27 barns/electron
U=PE_{Kalistrontite} 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 3m 3 2/m

28.04.03.02 Kalistrontite K2Sr(SO4)2 R 3m 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 3m 3 2/m

07.AD.40 Palmierite (K,Na)2Pb(SO4)2 R 3m 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

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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:

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