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Krasnovite Mineral Data

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General Krasnovite Information

Help on Chemical  Formula: Chemical Formula: Ba(Al,Mg)(PO4,CO3)(OH)2•(H2O)
Help on Composition: Composition: Molecular Weight = 301.90 gm
   Barium      45.49 %  Ba   50.79 % BaO
   Magnesium    2.01 %  Mg    3.34 % MgO
   Aluminum     6.70 %  Al   12.66 % Al2O3
   Phosphorus   7.69 %  P    17.63 % P2O5
   Hydrogen     1.34 %  H    11.93 % H2O
   Carbon       0.99 %  C     3.64 % CO2
   Oxygen      35.77 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaAl0.75Mg0.25(PO4)0.75(CO3)0.25(OH)2•(H2O)
Help on Environment: Environment: Dolomite veins.
Help on IMA Status: IMA Status: Approved IMA 1996 (Dana # Added)
Help on Locality: Locality: Kovdor on the Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for N. I. Krasnova (1941-), mineralogist at St. Petersburg University.
Help on Name Pronunciation: Name Pronunciation: Krasnovite + Pronunciation Say KRASNOVITE
Help on Synonym: Synonym: IMA1991-020

Krasnovite Image

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Comments: Pastel blue, vitreous massive krasnovite, associated with white ankerite.
Location: Cerro Sapo Carbonatite dike, Cochabamba, Bolivia. Scale: See Image.
© Rruff Database

Krasnovite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.5768:1:1.9532
Help on Cell Dimensions: Cell Dimensions: a = 8.939, b = 5.669, c = 11.073, Z = 4; V = 561.13 Den(Calc)= 3.57
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnna,Pnnn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.768(1), 3.479(0.82), 5.54(0.79),2.543(0.61),

Physical Properties of Krasnovite

Help on Cleavage: Cleavage: {010} Good
Help on Color: Color: Pale blue.
Help on Density: Density: 3.7
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Fibrous - Thin, elongated fractures produced by crystal forms or intersecting cleavages (e.g. asbestos).
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Silky
Help on Streak: Streak: white

Optical Properties of Krasnovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.048 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.014 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.176,KPDmeas= 0.1698,KC= 0.1784
Ncalc = 1.64 - 1.66
Help on Optical Data: Optical Data: Biaxial (-), a=1.616, b=1.629, g=1.64, bire=0.0240, 2V(Calc)=84, 2V(Meas)=70 -90. Dispersion strong, r > v.
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): none.
Help on Pleochroism (z): Pleochroism (z): none.

Calculated Properties of Krasnovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.30 gm/cc
note: Specific Gravity of Krasnovite =3.57 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEKrasnovite = 198.00 barns/electron
U=PEKrasnovite x rElectron Density= 653.23 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Krasnovite is Not Radioactive

Krasnovite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.07)where (AB)5 (XO4)3 Zq � x(H2O)
  (42.07.02)Foggite Group Foggite CaAl(PO4)(OH)2•(H2O) A2122 2 2 2 Krasnovite! Ba(Al,Mg)(PO4,CO3)(OH)2•(H2O) Pnna,Pnnn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.DK.35 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DK -With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
08.DK.35 Krasnovite! Ba(Al,Mg)(PO4,CO3)(OH)2•(H2O) Pnna,Pnnn 2/m 2/m 2/m

Other Krasnovite Information

Help on References: References: NAME( MinRec, Vol. 28, No. 3) PHYS. PROP.(Am.Min.,Vol.82,p621,1997) OPTIC PROP.(MinRec, Vol. 28, No. 3)
Help on See Also: See Also: Links to other databases for Krasnovite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.DK.35





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