Paravinogradovite Mineral Data (original) (raw)

General Paravinogradovite Information

Help on Chemical Formula: Chemical Formula:

(Na,[ ])2(Ti,Fe+++)4(Si2O6)2(Si3AlO10)(OH)4•H2O

Help on Composition: Composition:

Molecular Weight = 902.89 gm

Potassium 0.74 % K 0.89 % K2O

Sodium 5.81 % Na 7.83 % Na2O

Magnesium 0.08 % Mg 0.13 % MgO

Titanium 17.87 % Ti 29.81 % TiO2

Beryllium 0.28 % Be 0.78 % BeO

Aluminum 3.26 % Al 6.15 % Al2O3

Iron 2.91 % Fe 4.16 % Fe2O3

Silicon 20.50 % Si 43.85 % SiO2

Hydrogen 0.70 % H 6.27 % H2O

Oxygen 47.86 % O

______ ______

100.00 % 99.87 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Na2.28K0.17Ti3.37Fe3+0.47Mg0.03Si6.59Al1.09Be0.28O22(OH)3.74�1.27(H2O)

Help on Environment: Environment:

Strongly mineralized nepheline-feldspar pegmatite. Related to vinogradovite; structure determined.

Help on IMA Status: IMA Status:

Approved IMA 2003 (Dana # Added)

Help on Locality: Locality:

Mount Kukisvumchorr, Khibina alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the relationship to vinogradovite.

Help on Synonym: Synonym:

IMA2002-033

Paravinogradovite Image

Click Here for Larger Paravinogradovite Image in a New Browser Window Images:

Click Here for Larger Paravinogradovite Image Paravinogradovite Comments: Aggregates of parallel tan colored acicular paravinogradovite crystals associated with zircon. Location: Kukisvumchorr Mountain, Khibiny Massif, Kola Peninsula, Russia.Scale: See Image. © Rruff Database

Paravinogradovite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.6009:1:1.4812

Help on Cell Dimensions: Cell Dimensions:

a = 5.2533, b = 8.7411, c = 12.948, Z = 1; alpha = 70.47°, beta = 78.47°, gamma = 89.93° V = 549.05 Den(Calc)= 2.73

Help on Crystal System: Crystal System:

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

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.182(1)(013,014), 5.88(0.65)(011,012), 11.9(0.58)(001),4.35(0.38)(021,102), 5.98(0.35)(002), 3.085(0.29)(123), 2.735(0.21)(122),

Click Here for Large Paravinogradovite Structure Window Crystal Structure:

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| | Khomyakov A P , Kulikova I E , Sokolova E V , Hawthorne F C , Kartashov P M , The Canadian Mineralogist , 41 (2003) p.989-1002 | | --------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Paravinogradovite

Help on Cleavage: Cleavage:

{001} Perfect, {010} Indistinct

Help on Color: Color:

White.

Help on Density: Density:

2.77

Help on Diaphaneity: Diaphaneity:

Translucent to transparent

Help on Fracture: Fracture:

Brittle - Splintery - Brittle fracture leaving splintery fragments.

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Hardness: Hardness:

5 - Apatite

Help on Luminescence: Luminescence:

Fluorescent, Short UV=week yellow green, Long UV=week yellow green.

Help on Luster: Luster:

Vitreous - Pearly

Help on Streak: Streak:

white

Optical Properties of Paravinogradovite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.023 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.268,KPDmeas= 0.2651,KC= 0.2743
Ncalc = 1.75 - 1.76

Help on Optical Data: Optical Data:

Biaxial (-), a=1.707, b=1.741, g=1.755, bire=0.0480, 2V(Calc)=64, 2V(Meas)=64. Dispersion r > v.

Calculated Properties of Paravinogradovite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.70 gm/cc
note: Specific Gravity of Paravinogradovite =2.74 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Help on Photoelectric: Photoelectric:

PEParavinogradovite = 4.83 barns/electron
U=PEParavinogradovite x relectron= 13.05 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 10.47 (Gamma Ray American Petroleum Institute Units)
Concentration of Paravinogradovite per GRapi unit = 9.55 (%)

Estimated Radioactivity from Paravinogradovite - barely detectable

Paravinogradovite Classification

Help on Dana Class: Dana Class:

68.01.02.02 (68)Inosilicate Structures with Chains of More Than One Width

(68.01)Dana Type

(68.01.02)Dana Group

68.01.02.01 Vinogradovite (Na,K)4Ti4(Si,Al)8O26•3(H2O,Na) A2/a 2/m

68.01.02.02 Paravinogradovite! (Na,[])2(Ti,Fe)4(Si2O6)2(Si3AlO10)(OH)4•H2O P1 1

Help on Strunz Class: Strunz Class:

09.DB.25 09 - SILICATES (Germanates)

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

09.DB -Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals

09.DB.25 Vinogradovite (Na,K)4Ti4(Si,Al)8O26•3(H2O,Na) A2/a 2/m

09.DB.25 Paravinogradovite! (Na,[])2(Ti,Fe)4(Si2O6)2(Si3AlO10)(OH)4•H2O P1 1

Other Paravinogradovite Information

Help on References: References:

NAME( CanMin, v 41, p 989) PHYS. PROP.(CanMin, v 41, p 989) OPTIC PROP.(CanMin, v 41, p 989)

Help on See Also: See Also:

Links to other databases for Paravinogradovite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Paravinogradovite

(Na,[ ])2(Ti,Fe+++)4(Si2O6)2(Si3AlO10)(OH)4•H2O
Dana No: 68.01.02.02 Strunz No: 09.DB.25
Locality:

Notes: