Innelite Mineral Data

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General Innelite Information

Chemical Formula:

(Na,Mg,Ca)2(Ba,K)4Ti3(Si2O7)2(SO4)2(OH,F)

Composition:

Molecular Weight = 1,284.02 gm

Potassium 0.61 % K 0.73 % K₂O

Barium 39.57 % Ba 44.18 % BaO

Sodium 4.12 % Na 5.55 % Na₂O

Calcium 0.62 % Ca 0.87 % CaO

Magnesium 0.57 % Mg 0.94 % MgO

Titanium 11.19 % Ti 18.66 % TiO₂

Silicon 8.75 % Si 18.72 % SiO₂

Hydrogen 0.10 % H 0.91 % H₂O

Sulfur 4.99 % S 12.47 % SO₃

Oxygen 29.03 % O

Fluorine 0.44 % F 0.44 % F

- % F -0.19 % -O=F₂

______ ______

100.00 % 103.30 % = TOTAL OXIDE

Empirical Formula:

Na_2.3Mg_0.3Ca_0.2Ba_3.7K_0.2Ti₃(Si₂O₇)₂(SO₄)₂(OH)_1.3F_0.3

Environment:

In miarolitic cavities of aegirine-eckermannite-microcline pegmatites in dunites.

IMA Status:

Approved IMA 1961

Locality:

In the Inagli massif, 30 km west of Aldan, and the Yakokutsk massif, near Schelochnoy Spring, Yakutia, Russia. Link to MinDat.org Location Data.

Name Origin:

From the Yakut name, "inneli," for the Inagli River, Yakutia, Russia.

Name Pronunciation:

Innelite

Synonym:

ICSD 23181

PDF 15-71

Innelite Image

Images:

Innelite

Comments: Yellow crystalline granular innelite.
Location: Inagli, Aldan, Republic of Sakha, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Innelite Crystallography

Axial Ratios:

a:b:c =0.7535:1:2.0672

Cell Dimensions:

a = 5.38, b = 7.14, c = 14.76, Z = 1; alpha = 99°, beta = 95°, gamma = 90° V = 557.87 Den(Calc)= 3.82

Crystal System:

Triclinic - PedialH-M Symbol (1) Space Group: P1

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

By Intensity(I/I_o): 3.92(1), 2.95(0.6), 3.04(0.6),

Crystal Structure:

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Chernov A N , Ilyukhin V V , Maksimov B A , Belov N V , Soviet Physics Crystallography , 16 (1971) p.65-69, Crystal structure of innelite - Na2Ba3(Ba,K,Mn)(Ca,Na)Ti(TiO2)2[Si2O7]2(SO4)2, Locality: Inaglinskii Massif, Southern Yakusk, Russia

Physical Properties of Innelite

Cleavage:

{010} Perfect, {110} Perfect, {001} Distinct

Color:

Brown, Light yellow.

Density:

3.96

Diaphaneity:

Transparent to Translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Platy - Sheet forms (e.g. micas).

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Hardness:

4.5-5 - Near Apatite

Luminescence:

Piezoelectric.

Luster:

Vitreous - Greasy

Optical Properties of Innelite

Gladstone-Dale:

CI meas= 0.106 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.073 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1945,KPDmeas= 0.1876,KC= 0.2099
Ncalc = 1.8 - 1.83

Optical Data:

Biaxial (+), a=1.726, b=1.737, g=1.766, bire=0.0400, 2V(Calc)=66, 2V(Meas)=82. Dispersion r > v strong.

Pleochroism (x):

light yellow.

Pleochroism (y):

light yellow.

Pleochroism (z):

pale brownish yellow.

Calculated Properties of Innelite

Electron Density:

Bulk Density (Electron Density)=3.50 gm/cc
note: Specific Gravity of Innelite =3.82 gm/cc.

Fermion Index:

Fermion Index = 0.09
Boson Index = 0.91

Photoelectric:

PE_Innelite= 175.95 barns/electron
U=PE_Innelite x r_electron= 615.89 barns/cc.

Radioactivity:

GRapi = 8.07 (Gamma Ray American Petroleum Institute Units)
Concentration of Innelite per GRapi unit = 12.39 (%)

Estimated Radioactivity from Innelite - barely detectable

Innelite Classification

Dana Class:

58.02.06.02 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups

(58.02)with cations in [6] and higher coordination; single and double groups (n=1,2)

(58.02.06)Yoshimuraite and related species

58.02.06.01 Yoshimuraite (Ba,Sr)2(Mn,Fe)2(Ti,Fe)(Si2O7)2(PO4,SO4)(OH) P1 1

58.02.06.02 Innelite (Na,Mg,Ca)2(Ba,K)4Ti3(Si2O7)2(SO4)2(OH,F) P1 1

58.02.06.03 Phosphoinnelite! Ba4Na3Ti3Si4O14(PO4,SO4)2(O,F)3 P1 or P1 Tri

Strunz Class:

09.BE.40 09 - SILICATES (Germanates)

09.B - Sorosilicates

09.BE -Si2O7 groups with additional anions;

09.BE.40 Innelite (Na,Mg,Ca)2(Ba,K)4Ti3(Si2O7)2(SO4)2(OH,F) P1 1

09.BE.40 Phosphoinnelite! Ba4Na3Ti3Si4O14(PO4,SO4)2(O,F)3 P1 or P1 Tri

Other Innelite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(AntBidBlaNic2)

See Also:

Links to other databases for Innelite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Innelite Specimen Label here :

Innelite

(Na,Mg,Ca)2(Ba,K)4Ti3(Si2O7)2(SO4)2(OH,F)
Dana No: 58.02.06.02 Strunz No: 09.BE.40
Locality:

Notes: