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Paganoite (Paganoit)

Collectors Summary

Color grau
Streak color blass orange braun
Cleavages keine
Fracture uneben
Crystal System triklin, P1

Chemism

Chemical formula

(Ni,Co)Bi3+[O|AsO4]

Chemical composition

Arsen, Bismut, Kobalt, Nickel, Sauerstoff

Unit weight: 422.652499225 u; Number of atoms in the formula: 8

Info

Empirical formula:

(Ni0.75Co0.25)Bi[OAsO4]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

18.93

5

62.50

15.9994300

79.9971500
Cobalt

Co

3.49

0.25

3.13

58.9332009

14.7333002
Nickel

Ni

10.42

0.75

9.38

58.6934200

44.0200650
Arsenic

As

17.73

1

12.50

74.9216020

74.9216020
Bismuth

Bi

49.44

1

12.50

208.9803820

208.9803820

Analysis wt%

As2O5 : 28.00, NiO : 15.37, CoO : 2.05, Bi2O3 : 55.06 (Ref: European Journal of Mineralogy 2001)

Strunz 9th edition incl. updates

8.BH.50

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
H: Mit mittelgroßen und meist großen [Kationen] (OH, etc.):RO4 = 1:1
50:Paganoit-Gruppe

Lapis Classification

VII/B.28-080

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
28: Mittelgroße und große Kationen: Mg-Cu-Zn und Ca-Na-K-Ba-Pb

Classification by Hölzel

8.BL.650

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
L: Phosphates, very large: 2, Vmed: 2
6: With other complex Anions: Oxonium

Dana 8th edition

38.05.13.01

38: Anhydrous Phosphates, etc
05: Anhydrous Phosphates, etc with miscellaneous formulae

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

grau

Streak color

blass orange braun

Diaphaneity (Transparency)

transparent bis durchscheinend

RI value α / ω / n

2.08

Ri mean

2.080

2V angle

Biaxial

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

6.713

Cell parameters b (Å)

6.829

Cell parameters c (Å)

5.235

Cell parameters a/b or c/a

0.983

Cell parameters c/b

0.767

Cell parameters α

107.63

Cell parameters β

95.42

Cell parameters γ

111.15

Z

2

Volume (ų)

207.631

X-Ray Powder Diffraction

5.94(100),
4.689(30),
3.233(100),
3.067(60),
3.047(50),
2.116(50),
2.095(40),
1.659(40)
XRD chart Paganoite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

6.715 (berechnet)

6.76 ( ρ calc. Mineralienatlas )

Cleavages

keine

Fracture

uneben

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen/Erzgebirgskreis/Johanngeorgenstadt

Preface

Name from

Adriana (1939-2020) und Renato Pagano (1938–2023)
Zu Lebensläufen und Ehrungen siehe
White, J.S.: Who's who in mineral names? Renato Pagano and Adriana Pagano. Rocks & Minerals Vol. 77, Nr. 5 (2002) S. 326-327.
Wilson, W. E.: Collector profile: Renato and Adriana Pagano. Mineralogical Record Vol. 42, Nr. 1 (2011) S. 41-52.
Dona Lee Leicht: In Memoriam: Adriana Pagano (1939–2020). Rocks & Minerals Vol. 96, Nr. 3 (2021) S. 281-283.
Dona Lee Leicht: In Memoriam: Renato Pagano (1938–2023). Rocks & Minerals Vol. 98, Nr. 5 (2023) S. 484-485 | DOI: 10.1080/00357529.2023.2213618

Author (Name, Year)

Roberts & Burns & Gaulty & Criddle & Feinglos & Stirling, 2001

References

European Journal of Mineralogy 13 (2001), 167

Other languages

German

Paganoit

English

Paganoite

French

Paganoite

Spanish

Paganoíta

Russian

Паганоит

CNMNC (IMA)-Number

IMA 1999-043

CNMNC symbol

Symbol

Pgn

Locations with GPS information

IDs

GUSID (Global unique identifier short form) DXP7ds7VYEOhZwDlfd7Opg
GUID (Global unique identifier) 76FB730D-D5CE-4360-A167-00E57DDECEA6
Database ID 2885