Kosnarite Mineral Data

Kosnarite Mineral Data
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General Kosnarite Information

Help on Chemical Formula: Chemical Formula: KZr++++2(PO4)3
Help on Composition: Composition: Molecular Weight = 506.46 gm
   Potassium    7.72 %  K     9.30 % K2O
   Zirconium   36.02 %  Zr   48.66 % ZrO2
   Phosphorus  18.35 %  P    42.04 % P2O5
   Oxygen      37.91 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KZr2(PO4)3
Help on IMA Status: IMA Status: Approved IMA 1993
Help on Locality: Locality: Mt Mica pegmatite, Paris, Oxford Co., Maine, USA Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Richard A. Kosnar (1946-), mineral dealer.
Help on Name Pronunciation: Name Pronunciation: Kosnarite + Pronunciation Say KOSNARITE
Help on Synonym: Synonym: ICSD 4427
  IMA1991-022
  PDF 46-1397
 

Kosnarite Image

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Kosnarite

Comments: Pale bluish crystals of kosnarite in matrix.
Location: Mt Mica mine, Paris, Oxford Co., Maine, USA. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag
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Kosnarite

Comments: Transparent crystals of kosnarite on matrix.
Location: Itinga Mine, Minas Gerais, Brazil. Scale: Crystal size 2 mm.
© John Veevaert
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Kosnarite   Zanazziite

Comments: Beige crystals of kosnarite with pinkish, radial aggregates of zanazziite on whte albite matrix.
Location: Jenipapo, Itinga, Minas Gerais, Brazil. Scale: Picture size 6 cm.
© Fabre Minerals

Kosnarite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.74858
Help on Cell Dimensions: Cell Dimensions: a = 8.687, c = 23.877, Z = 6; V = 1,560.45 Den(Calc)= 3.23
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.329(1), 2.928(0.9), 3.806(0.9),
Click Here for Large Kosnarite Structure Window Crystal Structure:

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Sljukic M , Matkovic B , Prodic B , Anderson D , Zeitschrift fur Kristallographie , 130 (1969) p.148-161, The crystal structure of KZr2(PO4)3, Locality: synthetic

 

Physical Properties of Kosnarite

Help on Cleavage: Cleavage: {102} Perfect
Help on Color: Color: Colorless, Gray blue, Light green.
Help on Density: Density: 3.194
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Kosnarite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.059 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.047 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2071,KPDmeas= 0.2095,KC= 0.1978
Ncalc = 1.63 - 1.64
Help on Optical Data: Optical Data: Uniaxial (+), w=1.656, e=1.682, bire=0.0260.
 

Calculated Properties of Kosnarite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.06 gm/cc
note: Specific Gravity of Kosnarite =3.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEKosnarite = 50.56 barns/electron
U=PEKosnarite x relectron= 154.76 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 105.56 (Gamma Ray American Petroleum Institute Units)
Concentration of Kosnarite per GRapi unit = 0.95 (%)

Estimated Radioactivity from Kosnarite - barely detectable

 

Kosnarite Classification
Help on Dana Class: Dana Class: 38.04.12.01 (38)Anhydrous Phosphates, etc
  (38.04)A+ XO4
  (38.04.12)Dana Group
 
38.04.12.01 Kosnarite KZr2(PO4)3 R 3c 3 2/m
Help on Strunz Class: Strunz Class: 08.AC.60 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AC -With medium-sized and large cations
 
08.AC.60 Kosnarite KZr2(PO4)3 R 3c 3 2/m
 

Other Kosnarite Information
Help on References: References: PHYS. PROP.(Am.Min.,Vol.78,p653-656,1993) OPTIC PROP.(Am.Min.,Vol.78,p653-656,1993)
Help on See Also: See Also: Links to other databases for Kosnarite :
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
15 - WWW-MINCRYST

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

Kosnarite

KZr++++2(PO4)3
Dana No: 38.04.12.01 Strunz No: 08.AC.60
Locality:

 

Notes: