Uklonskovite Mineral Data

General Uklonskovite Information

Chemical Formula:

NaMg(SO4)F•2(H2O)

Composition:

Molecular Weight = 198.39 gm

Sodium 11.59 % Na 15.62 % Na₂O

Magnesium 12.25 % Mg 20.32 % MgO

Hydrogen 2.03 % H 18.16 % H₂O

Sulfur 16.16 % S 40.36 % SO₃

Oxygen 48.39 % O

Fluorine 9.58 % F 9.58 % F

- % F -4.03 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaMg(SO₄)F•2(H₂O)

Environment:

Cavities in clays above the salt strata (Kushkanatau salt deposit, Uzbekistan).

IMA Status:

Approved IMA 1964

Locality:

Kushkanatau salt deposit, lower Amu Darya River, Kara-Kalpakii, Uzbekistan. Link to MinDat.org Location Data.

Name Origin:

Named for Aleksandr Sergeevich Uklonskii (1882-1972), mineralogist, Tashkent University, Tashkent, Uzbekistan, who studied central Asian mineral deposits.

Name Pronunciation:

Uklonskovite + Pronunciation

Synonym:

ICSD 201712

PDF 39-320

Uklonskovite Image

Images:

Uklonskovite

Comments: Minute crystals and crystalline uklonskovite.
Location: Pampa del Pique III, Antofagasta, Chile. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uklonskovite Crystallography

Axial Ratios:

a:b:c =0.9983:1:0.7948

Cell Dimensions:

a = 7.202, b = 7.214, c = 5.734, Z = 2; beta = 113.23° V = 273.76 Den(Calc)= 2.41

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2₁/m

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

By Intensity(I/I_o): 3.505(1), 6.608(0.78), 5.27(0.6),

Physical Properties of Uklonskovite

Color:

Colorless.

Density:

2.42 - 2.5, Average = 2.46

Diaphaneity:

Transparent

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Uklonskovite

Gladstone-Dale:

CI meas= 0.046 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2025,KPDmeas= 0.1984,KC= 0.208
Ncalc = 1.5 - 1.52

Optical Data:

Biaxial (+), a=1.476, g=1.5, bire=0.0240

Calculated Properties of Uklonskovite

Electron Density:

Bulk Density (Electron Density)=2.43 gm/cc
note: Specific Gravity of Uklonskovite =2.41 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Uklonskovite= 1.52 barns/electron
U=PE_Uklonskovite x rElectron Density= 3.70 barns/cc.

Radioactivity:

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

Uklonskovite Classification

Dana Class:

31.07.02.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.07)where (A+ B++)2 (XO4) Zq�x(H2O)

(31.07.02)Dana Group

31.07.02.01 Uklonskovite NaMg(SO4)F•2(H2O) P 2₁/m 2/m

Strunz Class:

07.DF.05 07 - SULFATES (SELENATES, TELLURATES)

07.D - Sulfates (selenates, etc.) with additional anions, with H2O

07.DF -With large and medium-sized cations

07.DF.05 Uklonskovite NaMg(SO4)F•2(H2O) P 2₁/m 2/m

Other Uklonskovite 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 Uklonskovite :
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
15 - WWW-MINCRYST

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Uklonskovite

NaMg(SO4)F•2(H2O)
Dana No: 31.07.02.01 Strunz No: 07.DF.05
Locality:

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