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Waterhouseite (沃羟磷锰石)

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Waterhouseit
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Waterhouseit
Iron Monarch Open Cut, Iron Knob, South Australia, Australien. BB 1,0mm
Copyright: Mabu; Contribution: Mabu
Collection: Mabu
Location: Australien/South Australia/Eyre Peninsula/Middleback Range/Iron Knob/Iron Monarch Opencut
Mineral: Waterhouseite
Image: 1358868738
Rating: 7 (votes: 2)
License: Usage for Mineralienatlas project only
Waterhouseit

Iron Monarch Open Cut, Iron Knob, South Australia, Australien. BB 1,0mm

Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2013-01-22
Locality: Iron Monarch Opencut / Iron Knob / Middleback Range / Eyre Peninsula / South Australia / Australien

Collectors Summary

Color orange-braun - dunkelbraun
Streak color gelblich braun
Hardness (Mohs) vermutlich 4
Cleavages vollkommen (100) und probable (001)
Fracture muschelig
Crystal System monoklin, P21/c

Chemism

Chemical formula

Mn7(PO4)2(OH)8

Chemical composition

Mangan, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 710.5683277 u; Number of atoms in the formula: 33

Info

Empirical formula:

Mn7(PO4)2(OH)8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.13

8

24.24

1.0079470

8.0635760

Oxygen

O

36.03

16

48.48

15.9994300

255.9908800

Phosphorus

P

8.72

2

6.06

30.9737612

61.9475224

Manganese

Mn

54.12

7

21.21

54.9380499

384.5663493

Analysis wt%

P2O5 : 17.37, As2O5 : 1.09, V2O5 : 0.50, MnO : 69.70, H2O : 9.49 (Ref: Canadian Mineralogist 2005)

Strunz 9th edition incl. updates

8.BE.85

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
E: Mit ausschließlich mittelgroßen [Kationen] (OH, etc.):RO4 > 2:1
85:Waterhouseit-Gruppe

Lapis Classification

VII/B.15-048

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
15: Mittelgroße Kationen: Mg-Mn-Fe-Cu-Zn

Classification by Hölzel

8.BD.205

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
D: Phosphates, C medium, V: 2, OH/XO4 ò 3/1

Dana 8th edition

41.02.01.03

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
02: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A B)7 (XO4)2 Zq
01: Allactite Group

IMA status

anerkannt 2004

Mineral status

anerkanntes Mineral

Optical Properties

Color

orange-braun - dunkelbraun

Streak color

gelblich braun

max. Birefringence

0.008

Birefringence chart\! Waterhouseite title=Birefringence chart Waterhouseite

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

1.730

RI value β

1.738

RI value γ / ε

1.738

Ri mean

1.735

2V angle

Biaxial (-) sm

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

11.364

Cell parameters b (Å)

5.570

Cell parameters c (Å)

10.455

Cell parameters a/b or c/a

2.040

Cell parameters c/b

1.877

Cell parameters α

90°

Cell parameters β

96.62

Cell parameters γ

90°

Z

2

Volume (ų)

657.363

X-Ray Powder Diffraction

4.436(70), 3.621(100), 3.069(50), 2.941(40), 2.890(20), 2.842(20), 2.780(35), 2.718(20)

XRD chart Waterhouseite

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)

vermutlich 4

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.55 (3.591 berechnet)

3.59 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen (100) und probable (001)

Fracture

muschelig

Tenacity

spröde

Preface

Name from

Frederick George Waterhouse (1815-1898), dem ersten Direktor des südaustralischen Museum (Adelaide), in Anerkennung seines Beitrages zur Wahrung der Naturgschichte von Süd-Australien.

Author (Name, Year)

Pring & Kolitsch & Birch, 2005

References

Pring, A., Kolitsch, U., Birch, W.D. (2005): Description and unique crystal structure of waterhouseite, a new hydroxy manganese phosphate from the Iron Monarch deposit, Middleback Ranges, South Australia. Canadian Mineralogist: 43: 1401-1410

Other languages

German

Waterhouseit

English

Waterhouseite

Russian

Ватернаусеит

Simplified Chinese

沃羟磷锰石

Traditional Chinese

沃羥磷錳石

CNMNC (IMA)-Number

IMA 2004-035

CNMNC symbol

Symbol

Whs

Locations with GPS information

IDs

GUSID (Global unique identifier short form) OqJ05Jer3kOkZ6XXoMkjdg
GUID (Global unique identifier) E474A23A-AB97-43DE-A467-A5D7A0C92376
Database ID 4457