Yuksporite Mineral Data

General Yuksporite Information

Chemical Formula:

(Sr,Ba)2K4(Ca,Na)14([ ],Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n, n~3

Composition:

Molecular Weight = 2,546.97 gm

Potassium 6.14 % K 7.40 % K₂O

Barium 3.56 % Ba 3.97 % BaO

Sodium 4.36 % Na 5.88 % Na₂O

Strontium 4.78 % Sr 5.65 % SrO

Calcium 13.25 % Ca 18.54 % CaO

Titanium 5.88 % Ti 9.82 % TiO₂

Manganese 0.37 % Mn 0.47 % MnO

Niobium 2.41 % Nb 3.44 % Nb₂O₅

Iron 0.22 % Fe 0.28 % FeO

Silicon 19.85 % Si 42.46 % SiO₂

Hydrogen 0.24 % H 2.12 % H₂O

Oxygen 38.95 % O

______ ______

100.00 % 100.04 % = TOTAL OXIDE

Empirical Formula:

Na_4.83K₄Ba_0.66Ca_8.42Sr_1.39Ti_3.13Nb_0.66Mn²⁺_0.17Fe²⁺_0.1Si₁₈O₅₉�3(H₂O)

Environment:

Alkalic syenite massifs.

IMA Status:

Valid Species (Pre-IMA) 1922

Locality:

Yukspor, Mt. Khibiny massif, Kola peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Yuksporite + Pronunciation

Yuksporite Image

Images:

Yuksporite

Comments: Opaque fibrous yuksporite aggregate.
Location: Mount Yukspor, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yuksporite Crystallography

Axial Ratios:

a:b:c =0.286:1:0.6853

Cell Dimensions:

a = 7.126, b = 24.913, c = 17.075, Z = 2; beta = 101.89° V = 2,966.29 Den(Calc)= 2.85

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): 2.8(1), 3(0.9), 3.1(0.9),2.915(0.7), 6.22(0.55), 2.74(0.35), 3.19(0.35), 4.18(0.35),

Physical Properties of Yuksporite

Cleavage:

{???} Perfect

Color:

Brown pink, Pink.

Density:

3.05

Diaphaneity:

Semitransparent

Habit:

Concretionary - Rounded massive fine-grained materials.

Habit:

Nodular - Tuberose forms having irregular protuberances over the surface.

Hardness:

4.5-5 - Near Apatite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Yuksporite

Gladstone-Dale:

CI meas= 0.04 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2288,KPDmeas= 0.2138,KC= 0.2227
Ncalc = 1.63 - 1.68

Optical Data:

Biaxial (?), a=1.644, g=1.66, bire=0.0160, 2V(Meas)=46-76.

Pleochroism (x):

pale rose yellow.

Pleochroism (y):

rose yellow.

Pleochroism (z):

rose yellow.

Calculated Properties of Yuksporite

Electron Density:

Bulk Density (Electron Density)=2.78 gm/cc
note: Specific Gravity of Yuksporite =2.85 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Yuksporite= 27.50 barns/electron
U=PE_Yuksporite x r_electron= 76.57 barns/cc.

Radioactivity:

GRapi = 86.57 (Gamma Ray American Petroleum Institute Units)
Concentration of Yuksporite per GRapi unit = 1.16 (%)

Estimated Radioactivity from Yuksporite - barely detectable

Yuksporite Classification

Dana Class:

66.03.01.05 (66)Inosilicate Double-Width Unbranched Chains, W=2

(66.03)with chains P>2

(66.03.01)P=3

66.03.01.01 Xonotlite Ca6Si6O17(OH)2 P 2/a 2/m

66.03.01.02 Zorite Na6Ti5[Si12O34](O,OH)5•11(H2O) C mmm 2/m 2/m 2/m

66.03.01.03 Eudidymite NaBeSi3O7(OH) C 2/c 2/m

66.03.01.04 Epididymite NaBeSi3O7(OH) Pnam 2/m 2/m 2/m

66.03.01.05 Yuksporite (Sr,Ba)2K4(Ca,Na)14([],Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n,n~3 P 2₁/m 2/m

66.03.01.06 Haineaultite! (Na,Ca)5Ca(Ti,Nb)5(Si,S)12O34(OH,F)8•5(H2O) C 222 2 2 2

66.03.01.07 Chivruaiite! Ca4(Ti,Nb)5[(Si6O17)2[(OH,O)5]•13-14H2O C mmm 2/m 2/m 2/m

Strunz Class:

09.DG.95 09 - SILICATES (Germanates)

09.D - Inosilicates* Structural terminology according to Liebau (1985)

09.DG -Inosilicates with 3-periodic single and multiple chains

09.DG.95 Yuksporite (Sr,Ba)2K4(Ca,Na)14([],Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n,n~3 P 2₁/m 2/m

Other Yuksporite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990, AmMin, 89:253 & 89:1561) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Yuksporite :
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

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Yuksporite

(Sr,Ba)2K4(Ca,Na)14([ ],Mn,Fe){(Ti,Nb)4(O,OH)4[Si6O17]2[Si2O7]3}(H2O,OH)n, n~3
Dana No: 66.03.01.05 Strunz No: 09.DG.95
Locality:

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