Canaphite Mineral Data

General Canaphite Information

Chemical Formula:

CaNa2P2O7•4(H2O)

Composition:

Molecular Weight = 332.06 gm

Sodium 13.85 % Na 18.66 % Na₂O

Calcium 12.07 % Ca 16.89 % CaO

Phosphorus 18.66 % P 42.75 % P₂O₅

Hydrogen 2.43 % H 21.70 % H₂O

Oxygen 53.00 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaNa₂(P₂O₇)•4(H₂O)

Environment:

On a museum micromount specimen presumably from a trap-rock quarry.

IMA Status:

Approved IMA 1988

Locality:

Attributed to [Braens quarry,] Haledon [or Great Notch quarry, near Little Falls], Passaic Co., New Jersey, USA. Link to MinDat.org Location Data.

Name Origin:

For Calcium, sodium, Natrium, and Phosphate in the composition.

Synonym:

ICSD 202523

PDF 38-410

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Canaphite Crystallography

Axial Ratios:

a:b:c =1.2416:1:0.6689

Cell Dimensions:

a = 10.529, b = 8.48, c = 5.673, Z = 2; beta = 106.13° V = 486.58 Den(Calc)= 2.27

Crystal System:

Monoclinic - DomaticH-M Symbol (m) Space Group: Pa

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

By Intensity(I/I_o): 3.06(1), 2.608(0.9), 5.44(0.8),

Crystal Structure:

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Rouse R C , Peacor D R , Freed R L , American Mineralogist , 73 (1988) p.168-171, Pyrophosphate groups in the structure of canaphite, CaNa2P2O7.4(H2O): The, first occurrence of a condensed phosphate as a mineral

Physical Properties of Canaphite

Cleavage:

{010} Perfect

Color:

Colorless.

Density:

2.24

Diaphaneity:

Transparent

Hardness:

2 - Gypsum

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Canaphite

Gladstone-Dale:

CI meas= -0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2211,KPDmeas= 0.2241,KC= 0.2229
Ncalc = 1.5 - 1.51

Optical Data:

Biaxial (-), a=1.496, b=1.504, g=1.506, bire=0.0100, 2V(Calc)=52, 2V(Meas)=52.

Calculated Properties of Canaphite

Electron Density:

Bulk Density (Electron Density)=2.27 gm/cc
note: Specific Gravity of Canaphite =2.24 gm/cc.

Fermion Index:

Fermion Index = 0.0004209806
Boson Index = 0.9995790194

Photoelectric:

PE_Canaphite= 2.62 barns/electron
U=PE_Canaphite x rElectron Density= 5.94 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Canaphite is Not Radioactive

Canaphite Classification

Dana Class:

40.05.11.01 (40)Hydrated Phosphates, etc

(40.05)with miscellaneous formulae

(40.05.11)Dana Group

40.05.11.01 Canaphite CaNa2P2O7•4(H2O) Pa m

Strunz Class:

08.FC.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.F - Polyphosphates, Polyarsenates, [4]-Polyvanadates

08.FC -Polyphosphates, etc., with H2O only

08.FC.10 Canaphite CaNa2P2O7•4(H2O) Pa m

Other Canaphite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Canaphite :
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 Canaphite Specimen Label here :

Canaphite

CaNa2P2O7•4(H2O)
Dana No: 40.05.11.01 Strunz No: 08.FC.10
Locality:

Notes: