Apatite-(CaF) Mineral Data
General Apatite-(CaF) Information
Chemical Formula:
Ca5(PO4)3F
Composition:
Molecular Weight = 504.30 gm
Calcium 39.74 % Ca 55.60 % CaO
Phosphorus 18.43 % P 42.22 % P2 O5
Oxygen 38.07 % O
Fluorine 3.77 % F 3.77 % F
- %
F -1.59 % -O=F2
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Ca5 (PO4 )3 F
IMA Status:
Valid Species (Pre-IMA) 1860
Locality:
Common world wide. Link to MinDat.org Location Data.
Name Origin:
Named as the fluorine end-member and from the Greek apatao - "I am misleading."
Name Pronunciation:
Apatite-(CaF)
Synonym:
Apatite
Fluorapatite - Renamed to Apatite-(CaF) by Mineralogical Record, v39 (2008), p 131
Wilkeite
Apatite-(CaF) Image
Images:
Apatite-(CaF) Beryl Muscovite Apatite
Comments: Pink crystals of fluorapatite with pale blue beryl (aquamarine) on books of muscovite crystals.
Location: Nagar area, Gilgit district, Northern Areas, Pakistan.
Scale: 3 x 3 cm.
© Dan Weinrich
Images:
Apatite-(CaF) Quartz
Comments: Purple crystal of fluorapatite on slightly smoky quartz crystals. Former Dr. E.E. David and Houston Museum collections.
Location: Pech, Kunar Province, Nuristan, Afghanistan.
Scale: Crystal size 3.0 x 2.1 x 1.7 cm.
© Ed Rosenzweig
Images:
Apatite-(CaF) Crystallography
Axial Ratios:
a:c = 1:0.73492
Cell Dimensions:
a = 9.367, c = 6.884, Z = 2; V = 523.09 Den(Calc)= 3.20
Crystal System:
Hexagonal - Dipyramidal H-M Symbol (6/m) Space Group: P 63 /m
X Ray Diffraction:
By Intensity(I/Io ): 2.8(1), 2.702(0.6), 2.772(0.55),
Forms:
Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above
Forms:
( 0 1 1)
( 0 1 0)
( 1 1 0)
( 0 0 1)
Warning: this java applet does not work in some browsers because of security restrictions.
Physical Properties of Apatite-(CaF)
Cleavage:
{0001} Indistinct
Color:
Blue, Brown, Colorless, Violet, Green.
Density:
3.1 - 3.2, Average = 3.15
Diaphaneity:
Transparent to Opaque
Fracture:
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Habit:
Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Hardness:
5 - Apatite
Luminescence:
Fluorescent and phosphorescent.
Luster:
Vitreous - Resinous
Streak:
white
Optical Properties of Apatite-(CaF)
Dichroism (e):
colorless.
Dichroism (w):
colorless.
Gladstone-Dale:
CI meas = -0.024 (Excellent) - where the CI = (1-KPDmeas /KC ) CI calc = -0.008 (Superior) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.1973,KPDmeas = 0.2004,KC = 0.1958 Ncalc = 1.61 - 1.63
Optical Data:
Uniaxial (-), e=1.6325, w=1.63, bire=0.0025.
Calculated Properties of Apatite-(CaF)
Electron Density:
Bulk Density (Electron Density)=3.17 gm/cc note: Specific Gravity of Apatite-(CaF) =3.20 gm/cc.
Fermion Index:
Fermion Index = 0.0007191776 Boson Index = 0.9992808224
Photoelectric:
PEApatite-(CaF) = 5.79 barns/electronU=PEApatite-(CaF) x r Electron Density= 18.38 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Apatite-(CaF) is Not Radioactive
Apatite-(CaF) Classification
Dana Class:
41.08.01.01 (41) Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
(41.08) where (A)5 (XO4)3 Zq
(41.08.01) Apatite Group
41.08.01.00 Apatite * Ca5(PO4)3(OH,F,Cl) P 63 /m 6/m
41.08.01.01 Apatite-(CaF) Ca5(PO4)3F P 63 /m 6/m
41.08.01.02 Apatite-(CaCl) Ca5(PO4)3Cl P 63 /m 6/m
41.08.01.03 Apatite-(CaOH) Ca5(PO4)3(OH) P 63 /m 6/m
41.08.01.04 Carbonate-fluorapatite ? Ca5(PO4,CO3)3F P 63 /m 6/m
41.08.01.05 Carbonate-hydroxylapatite ? Ca5(PO4,CO3)3(OH) P 63 /m 6/m
41.08.01.06 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3
41.08.01.06a Belovite-(La) ! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3
41.08.01.06b Kuannersuite-(Ce) ! Ba6Na2REE2(PO4)6FCl P 3 3
41.08.01.07 Apatite-(SrOH) (Sr,Ca)5(PO4)3(F,OH) P 63 /m 6/m
41.08.01.08 Fluorcaphite ! (Ca,Sr,Ce,Na)5(PO4)3F P 63 6
41.08.01.09 Deloneite-(Ce) ! NaCa2SrCe(PO4)3F P 3 3
41.08.01.10 IMA2008-009 ! Sr5(PO4)3F P 63 /m 6/m 2/m 2/m
41.08.01.11 IMA2008-068 ! Ca2Pb3(PO4)3F P 63 /m 6/m
41.08.01.12 Phosphohedyphane ! Ca2Pb3(PO4)3Cl P 63 /m 6/m
Strunz Class:
08.BN.05 08 - PHOSPHATES, ARSENATES, VANADATES
08.B - Phosphates, etc. with Additional Anions, without H2O
08.BN -With only large cations, (OH, etc.):RO4 = 0.33:1
08.BN.05 Alforsite Ba5(PO4)3Cl P 63 /m 6/m
08.BN.05 Apatite * Ca5(PO4)3(OH,F,Cl) P 63 /m 6/m
08.BN.05 Belovite-(Ce) (Sr,Ce,Na,Ca)5(PO4)3(OH) P 3 3
08.BN.05 Belovite-(La) ! (Sr,La,Ce,Ca)5(PO4)3(F,OH) P 3 3
08.BN.05 Fermorite (Ca,Sr)5(AsO4,PO4)3(OH) P 63 /m 6/m
08.BN.05 Deloneite-(Ce) ! NaCa2SrCe(PO4)3F P 3 3
08.BN.05 Johnbaumite Ca5(AsO4)3(OH) P 63 /m,P 63 Hex
08.BN.05 Apatite-(CaOH) Ca5(PO4)3(OH) P 63 /m 6/m
08.BN.05 Apatite-(CaCl) Ca5(PO4)3Cl P 63 /m 6/m
08.BN.05 Carbonate-fluorapatite ? Ca5(PO4,CO3)3F P 63 /m 6/m
08.BN.05 Carbonate-hydroxylapatite ? Ca5(PO4,CO3)3(OH) P 63 /m 6/m
08.BN.05 Clinomimetite Pb5(AsO4)3Cl P 21 /b 2/m
08.BN.05 Apatite-(CaF) Ca5(PO4)3F P 63 /m 6/m
08.BN.05 Fluorcaphite ! (Ca,Sr,Ce,Na)5(PO4)3F P 63 6
08.BN.05 Hedyphane Ca2Pb3(AsO4)3Cl P 63 /m 6/m
08.BN.05 Mimetite Pb5(AsO4)3Cl P 63 /m 6/m
08.BN.05 Apatite-(SrOH) (Sr,Ca)5(PO4)3(F,OH) P 63 /m 6/m
08.BN.05 Morelandite (Ba,Ca,Pb)5(AsO4,PO4)3Cl P 63 /m,P 63 Hex
08.BN.05 Pyromorphite Pb5(PO4)3Cl P 63 /m 6/m
08.BN.05 Vanadinite Pb5(VO4)3Cl P 63 /m 6/m
08.BN.05 Apatite-(CaOH)-M ! (Ca,Na)5[(P,S)O4]3(OH,Cl) P 21 /b 2/m
08.BN.05 IMA2008-068 ! Ca2Pb3(PO4)3F P 63 /m 6/m
08.BN.05 Svabite Ca5(AsO4)3F P 63 /m 6/m
08.BN.05 Kuannersuite-(Ce) ! Ba6Na2REE2(PO4)6FCl P 3 3
08.BN.05 Turneaureite Ca5[(As,P)O4]3Cl P 63 /m 6/m
08.BN.05 Phosphohedyphane ! Ca2Pb3(PO4)3Cl P 63 /m 6/m
08.BN.05 IMA2008-009 ! Sr5(PO4)3F P 63 /m 6/m 2/m 2/m
08.BN.05 Hydroxylpyromorphite ! Pb5(PO4)3OH P 63 /m 6/m
Other Apatite-(CaF) Information
References:
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
See Also:
Links to other databases for Apatite-(CaF) :
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
Search for Apatite-(CaF) using:
[AOL ]
[Bing ]
[Dog Pile ]
[GeoScienceWorld ]
[HotBot ]
[Ixquick ]
[Lycos ]
[MAMMA ]
[Scirus ]
[Teoma ]
[WebCrawler ]
[Wikipedia ]
[YAHOO ]
Visit our Advertisers for Apatite-(CaF) :
Ask about Apatite-(CaF) 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
Espa�ol
Print or Cut-and-Paste your Apatite-(CaF) Specimen Label here :
Apatite-(CaF)
Ca5(PO4)3F
Dana No: 41.08.01.01 Strunz No: 08.BN.05
Locality:
Notes:
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.