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Meurigite-Na (Meurigit-Na)

Pictures (2 Images total)

Meurigit-Na
Views (File:
1275753530
): 754
Meurigit-Na
Bildbreite: 2 mm, Fundort: Lake Boga Granit Steinbruch, Lake Boga, Victoria, Australien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Australien/Victoria/Rural City of Swan Hill/Lake Boga/Lake Boga Granitsteinbruch
Mineral: Meurigite-Na
Image: 1275753530
Rating: 4 (votes: 1)
License: Usage for Mineralienatlas project only
Meurigit-Na

Bildbreite: 2 mm, Fundort: Lake Boga Granit Steinbruch, Lake Boga, Victoria, Australien

Copyright: Luigi Chiappino
Contribution: thdun5 2010-06-05
Locality: Lake Boga Granitsteinbruch / Lake Boga / Rural City of Swan Hill / Victoria / Australien
Meurigit-Na
Views (File:
1703342683
): 13
Meurigit-Na
Hellgelbe Meurigit-Na-Aggregate auf Matrix (ohne Maßstab) von der Typlokalität Silver Coin Mine, Valmy, Nevada, USA.
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: USA/Nevada/Humboldt Co./Iron Point District/Valmy/Silver Coin Mine
Mineral: Meurigite-Na
Image: 1703342683
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Meurigit-Na

Hellgelbe Meurigit-Na-Aggregate auf Matrix (ohne Maßstab) von der Typlokalität Silver Coin Mine, Valmy, Nevada, USA.

Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-23
Locality: Silver Coin Mine / Valmy / Iron Point District / Humboldt Co. / Nevada / USA

Collectors Summary

Color cremefarben, weiß oder gelb
Streak color weiß
Lustre Seidenglanz
Hardness (Mohs) ≈ 3
Cleavages wahrscheinlich nach (001)
Fracture splittrig
Solubility - konz. HCl
Crystal System monoklin, C2/c

Chemism

Chemical formula

[Na(H2O)2.5][Fe3+8(PO4)6(OH)7(H2O)4]

Chemical composition

Eisen, Natrium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 1275.7315024 u; Number of atoms in the formula: 72.5

Info

Empirical formula:

[Na(H2O)2.5][Fe8(PO4)6(OH)7(H2O)4]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.58

20

27.59

1.0079470

20.1589400

Oxygen

O

47.03

37.5

51.72

15.9994300

599.9786250

Sodium

Na

1.80

1

1.38

22.9897702

22.9897702

Phosphorus

P

14.57

6

8.28

30.9737612

185.8425672

Iron

Fe

35.02

8

11.03

55.8452000

446.7616000

Strunz 9th edition incl. updates

8.DJ.20

8: Phosphate, Arsenate, Vanadate
D: Phosphate, mit weiteren Anionen, mit H2O
J: Mit großen und mittelgroßen [Kationen], (OH, etc.):RO4 = 1:1
20:Phosphofibrit-Gruppe

Lapis Classification

VII/D.11-145

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
D: Wasserhaltige Phosphate, mit fremden Anionen
11: Mittelgroße Kationen: Cu-Zn-Mn-Al-Fe

Classification by Hölzel

8.DI.192

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
I: C large, V=1(2) - C small-medium, V=2,3,4
1: C small-medium, V=2 and 3,4 Paulkerrite-Group

IMA status

anerkannt September 2007

Mineral status

anerkanntes Mineral

Optical Properties

Color

cremefarben, weiß oder gelb

Streak color

weiß

Diaphaneity (Transparency)

transparent

Lustre

Seidenglanz

max. Birefringence

0.023

Birefringence chart\! Meurigite-Na title=Birefringence chart Meurigite-Na

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

1.740

RI value β

1.759

RI value γ / ε

1.763

Ri mean

1.753

2V angle

Biaxial (-) 50°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

28.835

Cell parameters b (Å)

5.185

Cell parameters c (Å)

19.484

Cell parameters a/b or c/a

5.561

Cell parameters c/b

3.758

Cell parameters α

90°

Cell parameters β

106.98

Cell parameters γ

90°

Z

4

Volume (ų)

2786.054

X-Ray Powder Diffraction

13.80(20), 9.349(100), 4.843(20), 4.318(20), 3.206(40), 3.107(30), 2.971(15), 1.574(20)

XRD chart Meurigite-Na

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

Physical Properties

Hardness (Mohs)

≈ 3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.94 gem.

3.041 ( ρ calc. Mineralienatlas )

Cleavages

wahrscheinlich nach (001)

Fracture

splittrig

Tenacity

leicht flexibel

Instability

- konz. HCl

Chemical Properties and Tests

unlöslich in konz. Salzsäure

Preface

Name from

der kristallchemischen Verwandschaft mit Meurigit-K und dem dominierendem Na

Author (Name, Year)

Anthony R. Kampf, 2007

References

IMA WEB-Seite, anerkannt September 2007

Kampf, A.R., J.J.Pluth, & Y. Chen (2007): The crystal structure of meurigite. American Mineralogist 92, 1518-1534.

A. R. Kampf, P. M. Adams, U. Kolitsch and I. M. Steele (2009): Meurigite-Na, a new species, and the relationship between phosphofibrite and meurigite. Am. Mineral. 94, 720-727.
Mineralien Welt 03/10, Steffen Jahn, Neue Mineralien

Other languages

German

Meurigit-Na

Spanish

Meurigita-Na

English

Meurigite-Na

CNMNC (IMA)-Number

IMA 2007-024

CNMNC symbol

Symbol

Meu-Na

Locations with GPS information

IDs

GUSID (Global unique identifier short form) MKiRzBpr10OZOE0lkm7uNw
GUID (Global unique identifier) CC91A830-6B1A-43D7-9938-4D25926EEE37
Database ID 4777