Nacaphite Mineral Data

Nacaphite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974


General Nacaphite Information

Help on Chemical Formula: Chemical Formula: Na(Na,Ca)2(PO4)F
Help on Composition: Composition: Molecular Weight = 194.90 gm
   Sodium      27.13 %  Na   36.57 % Na2O
   Calcium     14.39 %  Ca   20.14 % CaO
   Phosphorus  15.89 %  P    36.41 % P2O5
   Oxygen      32.84 %  O
   Fluorine     9.75 %  F     9.75 % F
                 -   %   F    -4.10 % -O=F2    
              ______        ______ 
              100.00 %       98.77 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2.3Ca0.7(PO4)F
Help on Environment: Environment: Hydrothermal assemblages.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Khibiny alkaline massif, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the composition (NaCa, Phosphate).
Help on Name Pronunciation: Name Pronunciation: Nacaphite + Pronunciation Say NACAPHITE
Help on Synonym: Synonym: ICSD 51234
  PDF 33-1222
 

Nacaphite Image

Click Here for Larger Nacaphite Image in a New Browser Window Images:
Click Here for Larger Nacaphite Image

Nacaphite   Thermonatrite

Comments: Sparse pale yellow-brown microcrystal and crystalline nacaphite with white thermonatrite on a dark matrix.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nacaphite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.436:1:0.2905
Help on Cell Dimensions: Cell Dimensions: a = 10.65, b = 24.425, c = 7.097, Z = 16; alpha = 89.99°, beta = 89.998°, gamma = 90.04° V = 1,846.12 Den(Calc)= 2.80
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.649(1), 3.054(0.45), 3.049(0.4),
Click Here for Large Nacaphite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Sokolova E V , Kabalov Y K , Ferraris G , Schneider J , Khomyakov A P , The Canadian Mineralogist , 37 (1999) p.83-90, Modular approach in solving the crystal structure of a synthetic dimorph of, nacaphite, Na2Ca[PO4]F, from powder-diffraction data

View Additional jPOWD Structure files for Nacaphite
[1]
 

Physical Properties of Nacaphite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.85
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Nacaphite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.015 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.033 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.189,KPDmeas= 0.1857,KC= 0.183
Ncalc = 1.51 - 1.52
Help on Optical Data: Optical Data: Biaxial (-), a=1.524, b=1.528, g=1.536, bire=0.0120, 2V(Calc)=72, 2V(Meas)=65.
 

Calculated Properties of Nacaphite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.79 gm/cc
note: Specific Gravity of Nacaphite =2.85 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0003519357
Boson Index = 0.9996480643
Help on Photoelectric: Photoelectric: PENacaphite = 3.03 barns/electron
U=PENacaphite x rElectron Density= 8.45 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nacaphite is Not Radioactive
 

Nacaphite Classification
Help on Dana Class: Dana Class: 41.03.06.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.03)where (A B)3 (XO4) Zq
  (41.03.06)Dana Group
 
41.03.06.01 Nacaphite Na(Na,Ca)2(PO4)F P1 1
Help on Strunz Class: Strunz Class: 08.BO.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BO -With only large cations, (OH, etc.):RO4 ³ 1:1
 
08.BO.05 Nacaphite Na(Na,Ca)2(PO4)F P1 1
 

Other Nacaphite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8, AmMin v93:706) OPTIC PROP.(AmMin, v93:706)
Help on See Also: See Also: Links to other databases for Nacaphite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - MinDAT
9 - MinMax(Deutsch)
10 - MinMax(English)
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info

Search for Nacaphite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Nacaphite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Diamond Dan Publications

e-Rocks Auctions

Excalibur Minerals

Exceptional Minerals


Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Nacaphite Mineral Data :

Ask about Nacaphite 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 Nacaphite Specimen Label here :

Nacaphite

Na(Na,Ca)2(PO4)F
Dana No: 41.03.06.01 Strunz No: 08.BO.05
Locality:

 

Notes: