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Organovaite-Zn Mineral Data

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General Organovaite-Zn Information

Help on Chemical  Formula: Chemical Formula: K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O)
Help on Composition: Composition: Molecular Weight = 2,439.14 gm
   Potassium   3.05 %  K     3.67 % K2O
   Barium      2.25 %  Ba    2.51 % BaO
   Sodium      0.47 %  Na    0.64 % Na2O
   Calcium     0.82 %  Ca    1.15 % CaO
   Titanium    6.28 %  Ti   10.48 % TiO2
   Manganese   0.45 %  Mn    0.58 % MnO
   Niobium    18.28 %  Nb   26.15 % Nb2O5
   Aluminum    0.22 %  Al    0.42 % Al2O3
   Zinc        4.29 %  Zn    5.34 % ZnO
   Iron        0.23 %  Fe    0.29 % FeO
   Silicon    18.19 %  Si   38.92 % SiO2
   Hydrogen    1.12 %  H    10.01 % H2O
   Oxygen     44.34 %  O
             ______        ______ 
             100.00 %      100.16 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K1.9Na0.5Ca0.5Ba0.4Zn1.6Mn2+0.2Fe2+0.1Nb4.8Ti3.2Si15.8Al0.2O52.5(OH)3.1�12(H2O)
Help on Environment: Environment: Alkaline pegmatites. Sometimes forms pseudomorphs after vuonnemite. Labuntsovite group; structure.
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Karnasurt Mountain, Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Natalia Ivanovna Organova (1929-), Russian crystallographer and the Zn end-member.
Help on Synonym: Synonym: IMA2001-006

Organovaite-Zn Image

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Comments: Crude pinkish-brown organovaite-Zn crystals in matrix.
Location: Mt. Karnasurt, Lovozero, Kola Peninsula, Russia. Scale: Specimen Size 1x2.5 cm.
© Diederik Visser

Organovaite-Zn Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0436:1:1.1247
Help on Cell Dimensions: Cell Dimensions: a = 14.535, b = 13.927, c = 15.665, Z = 1; beta = 117.6° V = 2,810.20 Den(Calc)= 1.44
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.96(1)(020,002), 3.222(0.84)(422,400,4043.114(0.66)(042,024), 2.514(0.3)(442,402), 4.924(0.3)(022), 6.43(0.24)(200,202), 1.43(0.22),

Physical Properties of Organovaite-Zn

Help on Cleavage: Cleavage: None
Help on Color: Color: Pink, Pinkish brown, White.
Help on Density: Density: 2.88
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Pseudomorphous - Occurs in the form of another mineral.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Organovaite-Zn

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.986 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.4991,KPDmeas= 0.2495,KC= 0.2513
Ncalc = 1.36 - 1.72
Help on Optical Data: Optical Data: Biaxial (+), a=1.683, b=1.688, g=1.785, bire=0.1020

Calculated Properties of Organovaite-Zn

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.81 gm/cc
note: Specific Gravity of Organovaite-Zn =2.88 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEOrganovaite-Zn = 40.28 barns/electron
U=PEOrganovaite-Zn x relectron= 113.04 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 42.83 (Gamma Ray American Petroleum Institute Units)
Concentration of Organovaite-Zn per GRapi unit = 2.33 (%)

Estimated Radioactivity from Organovaite-Zn - barely detectable


Organovaite-Zn Classification

Help on  Dana Class: Dana Class: 60.01.03h.02 (60)Cyclosilicate Four-Membered Rings
  (60.01)as Titanosilicates
  (60.01.03h)Labuntsovite Group (Organovaite subgroup Monoclinic [C2/m])
60.01.03h.01 Organovaite-Mn! K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) Cm m
60.01.03h.02 Organovaite-Zn! K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) C 2/m 2/m
60.01.03h.03 Parakuzmenkoite-Fe! (K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.CE.30g 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
09.CE.30g Parakuzmenkoite-Fe! (K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) C 2/m 2/m
09.CE.30g Organovaite-Zn! K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) C 2/m 2/m
09.CE.30g Organovaite-Mn! K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) Cm m

Other Organovaite-Zn Information

Help on References: References: NAME( AmMin, v 88, p 932) PHYS. PROP.(AmMin, v 88, p 932) OPTIC PROP.(AmMin, v 88, p 932)
Help on See Also: See Also: Links to other databases for Organovaite-Zn :
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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Dana No: 60.01.03h.02 Strunz No: 09.CE.30g





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