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Natrophilite

Collectors Summary

Color weingelb
Streak color weiß
Hardness (Mohs) 4.50 - 5.00
Solubility +++ Säuren
Crystal System orthorhombisch, Pnam

Chemism

Chemical formula

NaMnPO4

Chemical composition

Mangan, Natrium, Phosphor, Sauerstoff

Unit weight: 172.8993013 u; Number of atoms in the formula: 7

Info

Empirical formula:

NaMnPO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

37.01

4

57.14

15.9994300

63.9977200

Sodium

Na

13.30

1

14.29

22.9897702

22.9897702

Phosphorus

P

17.91

1

14.29

30.9737612

30.9737612

Manganese

Mn

31.77

1

14.29

54.9380499

54.9380499

Analysis wt%

Na2O : 16.79, FeO : 3.06, MnO : 38.19, P2O5 : 41.03, H2O : 0.43 (Ref: Dana, 7th ed. 2)

Strunz 9th edition incl. updates

8.AB.10

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
B: Mit mittelgroßen [Kationen]
10:Triphylin-Gruppe

Lapis Classification

VII/A.02-080

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
A: Wasserfreie Phosphate [PO4] 3-, ohne fremde Anionen
2: Mittelgroße Kationen: Fe-Mn vorwiegend

Classification by Hölzel

8.AC.520

8: PHOSPHATES ARSENATES VANADATES
A: Phosphates (-anions -water)
C: Phosphates, C medium + large
5: Maricite-Group

Dana 8th edition

38.01.01.03

38: Anhydrous Phosphates, etc
01: Anhydrous Phosphates, etc A+ B++ XO4
01: Triphylite Group

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Triphylite group

Optical Properties

Color

weingelb

Streak color

weiß

max. Birefringence

0.013

Birefringence chart\! Natrophilite title=Birefringence chart Natrophilite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.671

RI value β

1.674

RI value γ / ε

1.684

Ri mean

1.676

2V angle

Biaxial (+) 75°~

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnam

Cell parameters a (Å)

10.523

Cell parameters b (Å)

4.987

Cell parameters c (Å)

6.312

Cell parameters a/b or c/a

2.110

Cell parameters c/b

1.266

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

331.242

X-Ray Powder Diffraction

4.498(60),
4.045(60),
3.656(50),
3.154(50),
2.863(80),
2.604(100),
2.583(100),
1.831(70)

XRD chart Natrophilite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4.50 - 5.00

VHN (Hardness Vickers)

340 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.41 (gemessen)

3.467 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

Preface

Author (Name, Year)

Brush & Dana, 1890

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 405

IMA group assignments


 
 
Fe3+PO4
orthorhombisch
Pmnb

 
 
NaFe2+(PO4)
orthorhombisch
Pbnm

 
 
LiMnPO4
orthorhombisch
Pmnb

 
 
NaMnPO4
orthorhombisch
Pnam

 
 
Mn3+(PO4)
orthorhombisch
Pmnb

 
 
LiMg(PO4)
orthorhombisch
Pbn21, Pbnm

 
 
LiFe2+PO4
orthorhombisch
Pbnm

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Actuality: 04. Oct 2024 - 20:42:15

Other languages

Spanish

Natrofilita

German

Natrophilit

English

Natrophilite

French

Natrophilite

Russian

Натрофилит

Alternative Name

Spanish

Natrophilita

CNMNC symbol

Symbol

Ntp

Locations with GPS information

IDs

GUSID (Global unique identifier short form) aKMn-PJabUmOyeB1F5xOgg
GUID (Global unique identifier) F827A368-5AF2-496D-8EC9-E075179C4E82
Database ID 2704