Kapustinite Mineral Data

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General Kapustinite Information

Chemical Formula:

Na5.5Mn0.25ZrSi6O16(OH)2

Composition:

Molecular Weight = 689.44 gm

Sodium 17.94 % Na 24.18 % Na₂O

Calcium 0.12 % Ca 0.16 % CaO

Cerium 0.20 % Ce 0.24 % Ce₂O₃

Yttrium 0.13 % Y 0.16 % Y₂O₃

Zirconium 12.04 % Zr 16.26 % ZrO₂

Uranium 0.35 % U 0.39 % UO₂

Titanium 0.35 % Ti 0.58 % TiO₂

Manganese 1.83 % Mn 2.37 % MnO

Iron 0.24 % Fe 0.31 % FeO

Silicon 24.44 % Si 52.29 % SiO₂

Hydrogen 0.31 % H 2.77 % H₂O

Neodymium 0.21 % Nd 0.24 % Nd₂O₃

Oxygen 41.84 % O

______ ______

100.00 % 99.97 % = TOTAL OXIDE

Empirical Formula:

Na_5.38Y_0.01Ce_0.01Nd_0.01U_0.01Ca_0.02Mn²⁺_0.23Fe²⁺_0.03Ti_0.05Zr_0.91Si₆O_15.91(OH)_2.12

Environment:

A hyperagpaitic pegmatite.

IMA Status:

Approved IMA 2003 (Dana # Added)

Locality:

Kedykverpakhk Mountain, Lovozero massif (Kola Peninsula), Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Yu. L. Kapustin (1933-2002), Russian mineralogist who extensively studied alkaline massifs.

Synonym:

IMA2003-018

Kapustinite Image

Images:

Kapustinite

Comments: Purple-red kapustinite partly covered with white powdery newly formed thermonatrite with violet ussingite.
Location: Palitra Pegmatite, Kedykverpakhk Mt., Lovozero, Kola, Russia. Scale: Specimen Size 0.3x1.2 cm.
© Diederik Visser

Kapustinite Crystallography

Axial Ratios:

a:b:c =1.0382:1:0.7158

Cell Dimensions:

a = 10.693, b = 10.299, c = 7.373, Z = 2; beta = 91.91° V = 811.52 Den(Calc)= 2.82

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 2.651(1)(400,222), 3.27(0.92)(221,112,130), 2.58(0.91)(222,040), 3.342(0.84)(221,112), 5.313(0.51)(200,111), 3.69(0.43)(220,002), 1.849(0.39),

Crystal Structure:

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Yamnova N A , Egorov-Tismenko Y K , Pekov I V , Shchegol kova L V , Doklady Akademii Nauk SSSR , 396 (2004) p.680-685, Crystal structure of kapustinite Na5.5Mn0.25Zr[Si6O16(OH)2] - a new mineral of, the lovozerite group

Physical Properties of Kapustinite

Cleavage:

None

Color:

Dark cherry red.

Density:

2.78

Diaphaneity:

Transparent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Equant Grains - Granular material with equel dimensions in x, y, and z.

Hardness:

6 - Orthoclase

Luster:

Vitreous (Glassy)

Streak:

pale lilac

Optical Properties of Kapustinite

Gladstone-Dale:

CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2084,KPDmeas= 0.2114,KC= 0.2077
Ncalc = 1.58 - 1.59

Optical Data:

Biaxial (-), a=1.585, b=1.589, g=1.589, bire=0.0040

Calculated Properties of Kapustinite

Electron Density:

Bulk Density (Electron Density)=2.75 gm/cc
note: Specific Gravity of Kapustinite =2.82 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Kapustinite= 27.97 barns/electron
U=PE_Kapustinite x r_electron= 76.99 barns/cc.

Radioactivity:

GRapi = 29,152.89 (Gamma Ray American Petroleum Institute Units)
Concentration of Kapustinite per GRapi unit = 34.30 (PPM)

Kapustinite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

**Estimated Radioactivity from Kapustinite** - weak
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Bequerols (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 8.78 cm	627,238	1.70E-05	29,152.89	9.58
100 gm / 4.08 cm	62,724	1.70E-06	2,915.29	0.96
10 gm / 1.89 cm	6,272	1.70E-07	291.53	0.10
1 gm / 8.78 mm	627	1.70E-08	29.15	0.01
0.1 gm / 4.08 mm	63	1.70E-09	2.92	0.00
0.01 gm / 1.89 mm	6	1.70E-10	0.29	0.00
0.001 gm / 0.88 mm	1	1.70E-11	0.03	0.00

Weight of pure Kapustinite in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.82 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 0.02 % Th) From Sum REE Elements ( 0.41 % REE)

Kapustinite Classification

Dana Class:

61.01.02a.06 (61)Cyclosilicate Six-Membered Rings

(61.01)with [Si6O18] rings; possible (OH) and Al substitution

(61.01.02a)Lovozerite group (HEX and HEX-R subgroup)

61.01.02a.01 Lovozerite H4Na2Ca(Zr,Ti)[Si6O18] R 3m 3 2/m

61.01.02a.02 Kazakovite Na6MnTiSi6O18 R 3m 3 2/m

61.01.02a.03 Tisinalite Na3H3(Mn,Ca,Fe)TiSi6(O,OH)18•2(H2O) R 3m 3 2/m

61.01.02a.04 Zirsinalite Na6(Ca,Mn,Fe)Zr[Si6O18] R 3m 3 2/m

61.01.02a.05 Combeite Na2Ca2Si3O9 P 3₂21,P 3₁21 3 2

61.01.02a.06 Kapustinite! Na5.5Mn0.25ZrSi6O16(OH)2 C 2/m 2/m

Strunz Class:

09.CJ.15 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CJ -[Si6O18]12- 6-membered single rings (sechser-Einfachringe),

09.CJ.15 Combeite Na2Ca2Si3O9 P 3₂21,P 3₁21 3 2

09.CJ.15 Kazakovite Na6MnTiSi6O18 R 3m 3 2/m

09.CJ.15 Lovozerite H4Na2Ca(Zr,Ti)[Si6O18] R 3m 3 2/m

09.CJ.15 Zirsinalite Na6(Ca,Mn,Fe)Zr[Si6O18] R 3m 3 2/m

09.CJ.15 Kapustinite! Na5.5Mn0.25ZrSi6O16(OH)2 C 2/m 2/m

09.CJ.15 Tisinalite Na3H3(Mn,Ca,Fe)TiSi6(O,OH)18•2(H2O) R 3m 3 2/m

09.CJ.15 Litvinskite! Na2([],Na,Mn)Zr[Si6O12(OH,O)6] Cm m

Other Kapustinite Information

References:

NAME( AmMin. 90:271) PHYS. PROP.(AmMin. 90:271) OPTIC PROP.(AmMin. 90:271)

See Also:

Links to other databases for Kapustinite :
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 Kapustinite Specimen Label here :

Kapustinite

Na5.5Mn0.25ZrSi6O16(OH)2
Dana No: 61.01.02a.06 Strunz No: 09.CJ.15
Locality:

Notes: