Natrophilite Mineral Data (original) (raw)

General Natrophilite Information

Help on Chemical Formula: Chemical Formula:

NaMnPO4

Help on Composition: Composition:

Molecular Weight = 172.90 gm

Sodium 13.30 % Na 17.92 % Na2O

Manganese 31.77 % Mn 41.03 % MnO

Phosphorus 17.91 % P 41.05 % P2O5

Oxygen 37.01 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

NaMn2+(PO4)

Help on Environment: Environment:

Replacing lithiophilite, in a complex granite pegmatite.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1890

Help on Locality: Locality:

Branchville, Fairfield Co., Connecticut, USA. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for its content of sodium, natrium, and from the Greek for a friend.

Help on Name Pronunciation: Name Pronunciation:

Natrophilite + Pronunciation Say NATROPHILITE

Help on Synonym: Synonym:

ICSD 201771

PDF 25-846

Natrophilite Image

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

Click Here for Larger Natrophilite Image Natrophilite Comments: Natrophilite with lithiophilite. Location: Abija N. Fillow Quarry (Branchville Quarry), Branchville, Redding, Fairfield Co., Connecticut, USA.Scale: Specimen Size 3.7 x 2.2 x 1.9 cm. © Rob Lavinsky

Natrophilite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =2.106:1:1.258

Help on Cell Dimensions: Cell Dimensions:

a = 10.53, b = 5, c = 6.29, Z = 4; V = 331.17 Den(Calc)= 3.47

Help on Crystal System: Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnam

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.72(1), 2.6(0.8), 3.72(0.7),

Click Here for Large Natrophilite Structure Window Crystal Structure:

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Help on Above

| | Moore P B , American Mineralogist , 57 (1972) p.1333-1344, Natrophilite, NaMn(PO4), has ordered cations | | ---------------------------------------------------------------------------------------------------------- |

Physical Properties of Natrophilite

Help on Cleavage: Cleavage:

{100} Good, {010} Indistinct

Help on Color: Color:

Yellow.

Help on Density: Density:

3.41

Help on Diaphaneity: Diaphaneity:

Transparent to Translucent

Help on Fracture: Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Help on Habit: Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Help on Hardness: Hardness:

4.5-5 - Near Apatite

Help on Luminescence: Luminescence:

Non-fluorescent.

Help on Luster: Luster:

Resinous

Help on Magnetism: Magnetism:

Nonmagnetic

Help on Streak: Streak:

white

Optical Properties of Natrophilite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.044 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1949,KPDmeas= 0.1983,KC= 0.19
Ncalc = 1.65 - 1.66

Help on Optical Data: Optical Data:

Biaxial (+), a=1.671, b=1.674, g=1.684, bire=0.0130, 2V(Calc)=58, 2V(Meas)=75. Dispersion relatively strong.

Calculated Properties of Natrophilite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.33 gm/cc
note: Specific Gravity of Natrophilite =3.47 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0001776691
Boson Index = 0.9998223309

Help on Photoelectric: Photoelectric:

PENatrophilite = 9.25 barns/electron
U=PENatrophilite x rElectron Density= 30.81 barns/cc.

Help on Radioactivity: Radioactivity:

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

Natrophilite Classification

Help on Dana Class: Dana Class:

38.01.01.03 (38)Anhydrous Phosphates, etc

(38.01)A+ B++ XO4

(38.01.01)Triphylite Group

38.01.01.01 Triphylite LiFePO4 Pbnm 2/m 2/m 2/m

38.01.01.02 Lithiophilite LiMnPO4 Pmnb 2/m 2/m 2/m

38.01.01.03 Natrophilite NaMnPO4 Pnam 2/m 2/m 2/m

Help on Strunz Class: Strunz Class:

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

08.A - Phosphates, etc. without additional anions, without H2O

08.AB -With medium-sized cations

08.AB.10 Ferrisicklerite Li(Fe,Mn)PO4 Pmnb 2/m 2/m 2/m

08.AB.10 Heterosite FePO4 Pmnb 2/m 2/m 2/m

08.AB.10 Natrophilite NaMnPO4 Pnam 2/m 2/m 2/m

08.AB.10 Lithiophilite LiMnPO4 Pmnb 2/m 2/m 2/m

08.AB.10 Purpurite MnPO4 Pmnb 2/m 2/m 2/m

08.AB.10 Sicklerite Li(Mn,Fe)PO4 Pmnb 2/m 2/m 2/m

08.AB.10 Simferite Li(Mg,Fe,Mn)2(PO4)2 Pbnm or Pbn21 Ortho

08.AB.10 Triphylite LiFePO4 Pbnm 2/m 2/m 2/m

Other Natrophilite Information

Help on References: References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

Links to other databases for Natrophilite :
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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Ask about Natrophilite here :
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Print or Cut-and-Paste your Natrophilite Specimen Label here :

Natrophilite

NaMnPO4
Dana No: 38.01.01.03 Strunz No: 08.AB.10
Locality:

Notes: