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Arupite (Arupit)

Pictures (1 Images total)

Arupit
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1703448163
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Arupit
Blass grünblaues Arupit-Aggregat (ohne Maßstab) von der Typlokalität Santa Catharina Meteorit, Morro do Rócio, São Francisco do Sul, Santa Catarina, Brasilien.
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Brasilien/Süden (Região Sul)/Santa Catarina/Sao Francisco do Sul/Santa Catharina Meteorit
Mineral: Arupite
Image: 1703448163
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Arupit

Blass grünblaues Arupit-Aggregat (ohne Maßstab) von der Typlokalität Santa Catharina Meteorit, Morro do Rócio, São Francisco do Sul, Santa Catarina, Brasilien.

Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-24
Locality: Santa Catharina Meteorit / Sao Francisco do Sul / Santa Catarina / Süden (Região Sul) / Brasilien

Collectors Summary

Color blau, türkis blau
Streak color hellblau
Hardness (Mohs) 1.75
Solubility +++ Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

(Ni,Fe2+)3(PO4)2·8H2O

Chemical composition

Eisen, Nickel, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 508.0096494 u; Number of atoms in the formula: 37

Info

Empirical formula:

(Ni0.75Fe0.25)3(PO4)2·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.17

16

43.24

1.0079470

16.1271520

Oxygen

O

50.39

16

43.24

15.9994300

255.9908800

Phosphorus

P

12.19

2

5.41

30.9737612

61.9475224

Iron

Fe

8.24

0.75

2.03

55.8452000

41.8839000

Nickel

Ni

26.00

2.25

6.08

58.6934200

132.0601950

Strunz 9th edition incl. updates

8.CE.40

8: Phosphate, Arsenate, Vanadate
C: Phosphate ohne weitere Anionen, mit H2O
E: Mit ausschließlich mittelgroßen Kationen, RO4:H2O = 1:2.5
40:Vivianit-Gruppe

Lapis Classification

VII/C.13-045

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
C: Wasserhaltige Phosphate, ohne fremde Anionen
13: Kleine und mittelgroße Kationen: Be und Al-Mn-Fe-Cu-Zn-Mg; Vivianit-Gruppe

Classification by Hölzel

8.CB.433

8: PHOSPHATES ARSENATES VANADATES
C: Phosphates (-Anions +Water)
B: Valency: 2, C medium, Me3~[XO4]2*nH2O
4: nH2O=8, monoclinic Vivianite-Group

Dana 8th edition

40.03.06.08

40: Hydrated Phosphates, etc
03: Hydrated Phosphates, etc where (A++)3 (XO4)2 · x(H2O)
06: Vivianite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blau, türkis blau

Streak color

hellblau

Diaphaneity (Transparency)

durchscheinend

max. Birefringence

0.048

Birefringence chart\! Arupite title=Birefringence chart Arupite

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

1.632

RI value γ / ε

1.680

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

9.889

Cell parameters b (Å)

13.225

Cell parameters c (Å)

4.645

Cell parameters a/b or c/a

0.748

Cell parameters c/b

0.351

Cell parameters α

90°

Cell parameters β

102.42

Cell parameters γ

90°

Z

2

Volume (ų)

593.266

X-Ray Powder Diffraction

7.878(30),
6.624(100),
4.818(20),
4.507(10),
3.805(20),
3.152(20),
2.922(20),
2.672(20)

XRD chart Arupite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

1.75

VHN (Hardness Vickers)

24 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.85 (berechnet)

2.844 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

Preface

Author (Name, Year)

Buchwald, 1990

References

Neues Jahrbuch für Mineralogie, Monatshefte (1990), 76

Other languages

German

Arupit

Spanish

Arupita

French

Arupite

English

Arupite

Russian

Арупит

Japanese

アループ石

CNMNC (IMA)-Number

IMA 1988-008

CNMNC symbol

Symbol

Arp

IDs

GUSID (Global unique identifier short form) OuN8iHrN_0SB6ufa-cxGmg
GUID (Global unique identifier) 887CE33A-CD7A-44FF-81EA-E7DAF9CC469A
Database ID 216