Horvathite-(Y) Mineral Data + Say HORVATHITE-(Y)

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General Horvathite-(Y) Information

Help on Chemical  Formula: Chemical Formula: NaY(CO3)F2
Help on Composition: Composition: Molecular Weight = 209.90 gm
   Sodium    10.95 %  Na   14.76 % Na2O
   Yttrium   42.36 %  Y    53.79 % Y2O3
   Carbon     5.72 %  C    20.97 % CO2
   Oxygen    22.87 %  O
   Fluorine  18.10 %  F    18.10 % F
               -   %  F    -7.62 % -O=F2
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaY(CO3)F2
Help on Environment: Environment: In a large pegmatite dike.
Help on IMA Status: IMA Status: Approved IMA 1996 (Dana # Added)
Help on Locality: Locality: Poudrette Quarry, Mont Saint-Hillaire, Rouville County, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Elsa (1947-) and Laszlo (1937-) Horvath, husband-and-wife team dedicated to the collection, study, and documentation of the minerals from Mont Saint-Hilaire.
Help on Synonym: Synonym: ICSD 76857
  IMA1996-032
 

Horvathite-(Y) Image

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Horvathite-(Y)

Comments: Blocky crystals of horvathite-(Y) in matrix.
Location: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mt Saint-Hilaire, Rouville Co., Qu?bec, Canada. Scale: Picture size 3.5 mm.
© Thomas Witzke / Abraxas-Verlag

Horvathite-(Y) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7591:1:0.687
Help on Cell Dimensions: Cell Dimensions: a = 6.964, b = 9.173, c = 6.302, Z = 4; V = 402.58 Den(Calc)= 3.46
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmcn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.477(1), 5.19(0.9), 2.8(0.5),
Click Here for Large Horvathite-(Y) Structure Window Crystal Structure:

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Grice J D , Chao G Y , The Canadian Mineralogist , 35 (1997) p.743-749, Horvathite-(Y), rare-earth fluorocarbonate, a new mineral, species from Mont Saint-Hilaire, Quebec, Locality: Mont Saint-Hilaire, Quebec, Canada

 

Physical Properties of Horvathite-(Y)

Help on Cleavage: Cleavage: [100] Very Good, [010] Good
Help on Color: Color: Colorless, Pale yellow, Pale beige.
Help on Density: Density: 3.58
Help on Diaphaniety: Diaphaniety: Transparent to translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Horvathite-(Y)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.123 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.093 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1563,KPDmeas= 0.151,KC= 0.1722
Help on Optical Data: Optical Data: Biaxial (-), a=1.457, b=1.543, g=1.622, bire=0.1650, 2V(Calc)=82, 2V(Meas)=82. Dispersion none.
 

Calculated Properties of Horvathite-(Y)

Help on Electron Density: Electron Density:

relectron=3.23 gm/cc
note: rHorvathite-(Y) =3.46 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00073
Boson Index = 0.99927
Help on Photoelectric: Photoelectric:

PEHorvathite-(Y) = 53.56 barns/electron
U=PEHorvathite-(Y) x relectron= 173.06 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Horvathite-(Y) is Not Radioactive

 

Horvathite-(Y) Classification

Help on  Dana Class: Dana Class: 16a.1.10.1 (16a)Carbonates - Hydroxyl or Halogen
  (16a.1)in the Bastnasite/Shynchysite/Parasite Groups
  (16a.1.10)Dana Group
 
16a.1.10.1 Horvathite-(Y) ! NaY(CO3)F2 Pmcn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: V/C.07-64 V - Nitrates, Carbonates and Borates
  V/C - Waterfree carbonates with unfamiliar anions
  V/C.07 - Bastnäsite-(Y) - Mineevite-(Y) series
 
V/C.07-10 Bastnasite-(Y) Y(CO3)F P 62c 6 m2
 
V/C.07-20 Bastnasite-(La) La(CO3)F P 62c 6 m2
 
V/C.07-30 Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2
 
V/C.07-40 Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2
 
V/C.07-50 Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2
 
V/C.07-60 Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2
 
V/C.07-61 Kozoite-(Nd)! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-62 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-64 Horvathite-(Y) NaY(CO3)F2 Pmcn 2/m 2/m 2/m
 
V/C.07-70 Parisite-(Ce) Ca(Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-80 Parisite-(Nd) Ca(Nd,Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-90 Rontgenite-(Ce) Ca2(Ce,La)3(CO3)5F3 R 3 3
 
V/C.07-100 Synchysite-(Y) CaY(CO3)2F C 2/c 2/m
 
V/C.07-110 Synchysite-(Ce) CaCe(CO3)2F C 2/c 2/m
 
V/C.07-120 Synchysite-(Nd) CaNd(CO3)2F Unk Ortho
 
V/C.07-130 Huanghoite-(Ce) BaCe(CO3)2F R 3m 3 2/m
 
V/C.07-140 Cebaite-(Ce) Ba3Ce2(CO3)5F2 C 2/m or C 2 Mono
 
V/C.07-150 Cebaite-(Nd)! Ba3(Nd,Ce)2(CO3)5F2 Unk Mono
 
V/C.07-154 Kukharenkoite-(La)! Ba2(La,Ce)(CO3)3F P 21/m 2/m
 
V/C.07-155 Kukharenkoite-(Ce)! Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-160 Zhonghuacerite-(Ce) Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-170 Cordylite-(Ce) Ba(Ce,La)2(CO3)3F2 P 63/mmc 6/m 2/m 2/m
 
V/C.07-175 Lukechangite-(Ce)! Na3Ce2(CO3)4F P 63/mmc 6/m 2/m 2/m
 
V/C.07-190 Mineevite-(Y) Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2 P 63/m 6/m
 
V/C.07-200 Reederite-(Y)! Na15Y2(CO3)9(SO3F)Cl P 6 6
 
V/C.07-210 Micheelsenite! (Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O) P 63 6
 

Other Horvathite-(Y) Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Min.Mag.,Vol.61,p733,1997) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Horvathite-(Y) :
1 - Alkali-Nuts(Francais) 2 -Am. Min. Crystal Structure Database 3 -Athena 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST

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Horvathite-(Y)

NaY(CO3)F2
Dana No: 16a.1.10.1 Strunz No: V/C.07-64
Locality:

 

Notes:

 

 
   
 
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