Bastnasite-(Y) Mineral Data

Bastnasite-(Y) Mineral Data +

[Mineral Auctions] [Register] [Current Auctions] [Log In] [www.danweinrich.com]
Dan Weinrich Auctions
Specializing In Live Weekly Auctions Of Top Quality Mineral Specimens
The Place To Find Great Specimens At Great Prices!

General Bastnasite-(Y) Information

Chemical Formula:

Y(CO3)F

Composition:

Molecular Weight = 167.91 gm

Yttrium 52.95 % Y 67.24 % Y₂O₃

Carbon 7.15 % C 26.21 % CO₂

Oxygen 28.59 % O

Fluorine 11.31 % F 11.31 % F

- % F -4.76 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Y(CO₃)F

IMA Status:

Approved IMA 1970

Locality:

Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named as the Y end member and after the Bastnas Mine, Riddarhyttan, Vastmanland, Sweden.

Synonym:

Hamartite

Search for Bastnasite-(Y) Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Bastnasite-(Y) Crystallography

Axial Ratios:

a:c = 1:1.44292

Cell Dimensions:

a = 6.57, c = 9.48, Z = 6; V = 354.38 Den(Calc)= 4.72

Crystal System:

Hexagonal - Ditrigonal DipyramidalH-M Symbol (6 m2) Space Group: P 62c

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

By Intensity(I/I_o): 1.948(1), 2.78(1), 3.43(0.75),

Physical Properties of Bastnasite-(Y)

Cleavage:

[1011] Imperfect, [0001] Indistinct

Color:

Yellow, Reddish brown.

Density:

4.9 - 5, Average = 4.95

Diaphaniety:

Transparent to Translucent

Fracture:

Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

4-4.5 - Between Fluorite and Apatite

Luster:

Vitreous - Greasy

Streak:

white

Optical Properties of Bastnasite-(Y)

Gladstone-Dale:

CI meas= 0.114 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.07 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1626,KPDmeas= 0.1551,KC= 0.1749

Optical Data:

Uniaxial (+), w=1.717, e=1.818, bire=0.1010.

Calculated Properties of Bastnasite-(Y)

Electron Density:

r_electron=4.39 gm/cc
note: r_{Bastnasite-(Y)}=4.72 gm/cc.

Fermion Index

Fermion Index = 0.00092
Boson Index = 0.99908

Photoelectric:

PE_{Bastnasite-(Y)}= 67.02 barns/electron
U=PE_{Bastnasite-(Y)} x r_electron= 293.90 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bastnasite-(Y) is Not Radioactive

Bastnasite-(Y) Classification

Dana Class:

16a.1.1.3 (16a)Carbonates - Hydroxyl or Halogen

(16a.1)in the Bastnasite/Shynchysite/Parasite Groups

(16a.1.1)Bastnasite Subgroup

16a.1.1.1 Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2

16a.1.1.2 Bastnasite-(La) La(CO3)F P 62c 6 m2

16a.1.1.3 Bastnasite-(Y) Y(CO3)F P 62c 6 m2

Strunz Class:

V/C.07-10 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 Bastnasite-(Y) Information

References:

NAME( Ford32) PHYS. PROP.(Dana8) OPTIC PROP.(Ford32)

See Also:

Links to other databases for Bastnasite-(Y) :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

Search for Bastnasite-(Y) using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Bastnasite-(Y) :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Bastnasite-(Y) Mineral Data :

Ask about Bastnasite-(Y) here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Bastnasite-(Y) Specimen Label here :

Bastnasite-(Y)

Y(CO3)F
Dana No: 16a.1.1.3 Strunz No: V/C.07-10
Locality:

Notes: