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Macphersonite

Pictures (2 Images total)

Macphersonit
Views (File:
1272383219
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Macphersonit
Macphersonit mit Quarz. Kristallgröße: 2,5 mm, Fundort: Miniera di Pinn’e Perda, Fluminimaggiore, Carbonia-Iglesias, Sardinien (Sardegna), Italien
Copyright: Antonio Gamboni; Contribution: thdun5
Location: Italien/Sardinien (Sardegna), Region/Sud Sardegna, Provinz/Fluminimaggiore/Miniera di Pinn’e Perda
Mineral: Macphersonite
Image: 1272383219
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Macphersonit

Macphersonit mit Quarz. Kristallgröße: 2,5 mm, Fundort: Miniera di Pinn’e Perda, Fluminimaggiore, Carbonia-Iglesias, Sardinien (Sardegna), Italien

Copyright: Antonio Gamboni
Contribution: thdun5 2010-04-27
Locality: Miniera di Pinn’e Perda / Fluminimaggiore / Sud Sardegna, Provinz / Sardinien (Sardegna), Region / Italien
Macphersonit
Views (File:
1272383155
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Macphersonit
Bildbreite: 4 mm, Fundort: Miniera di Pinn’e Perda, Fluminimaggiore, Carbonia-Iglesias, Sardinien (Sardegna), Italien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Italien/Sardinien (Sardegna), Region/Sud Sardegna, Provinz/Fluminimaggiore/Miniera di Pinn’e Perda
Mineral: Macphersonite
Image: 1272383155
License: Usage for Mineralienatlas project only
Macphersonit

Bildbreite: 4 mm, Fundort: Miniera di Pinn’e Perda, Fluminimaggiore, Carbonia-Iglesias, Sardinien (Sardegna), Italien

Copyright: Luigi Chiappino
Contribution: thdun5 2010-04-27
Locality: Miniera di Pinn’e Perda / Fluminimaggiore / Sud Sardegna, Provinz / Sardinien (Sardegna), Region / Italien

Collectors Summary

Color weiß, blass bernsteinbraun, farblos
Streak color weiß
Hardness (Mohs) 2.5 - 3
Solubility +++ verdünnte Säuren
Crystal System orthorhombisch, Pcab

Chemism

Chemical formula

Pb4(SO4)(CO3)2(OH)2

Chemical composition

Blei, Kohlenstoff, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 1078.936114 u; Number of atoms in the formula: 21

Info

Empirical formula:

Pb4(SO4)(CO3)2(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.19

2

9.52

1.0079470

2.0158940

Carbon

C

2.23

2

9.52

12.0107800

24.0215600

Oxygen

O

17.79

12

57.14

15.9994300

191.9931600

Sulfur

S

2.97

1

4.76

32.0655000

32.0655000

Lead

Pb

76.82

4

19.05

207.2100000

828.8400000

Analysis wt%

Ø PbO : 83.40, SO3 : 6.60, CO2 : 8.80, H2O : 1.30 (Ref: Mineralogical Magazine 84)

Strunz 9th edition incl. updates

5.BF.40

5: Carbonate (Carbonate, Nitrate)
B: Carbonate mit weitere Anionen, ohne H2O
F: Mit [Cl], SO4, P04
40:Leadhillit-Gruppe

Lapis Classification

VI/B.13-060

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
B: Wasserfreie Sulfate, mit fremden Anionen
13: Große Kationen vorwiegend

Classification by Hölzel

5.BE.220

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
B: Carbonates (+Anions -Water)
E: HydrocerussiteLeadhillite-Group

Dana 8th edition

17.01.04.01

17: Compound Carbonates
01: Compound Carbonates with miscellaneous formulae

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß, blass bernsteinbraun, farblos

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend bis transparent

max. Birefringence

0.14

Birefringence chart\! Macphersonite title=Birefringence chart Macphersonite

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

1.87

RI value β

2.00

RI value γ / ε

2.01

Ri mean

1.960

2V angle

Biaxial (-) 36°

Optical Data Luminescence

Luminescence

fluoreszierend, Kurzwelliges UV=stark gelb, Langwelliges UV=stark gelb

Color LW-UV (365nm)

 

gelb

LW-UV Intensity

stark

Color SW-UV (254nm)

 

gelb

SW-UV Intensity

stark

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

61

Space Group

Pcab

Cell parameters a (Å)

10.37

Cell parameters b (Å)

23.10

Cell parameters c (Å)

9.25

Cell parameters a/b or c/a

0.449

Cell parameters c/b

0.400

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

2215.81

X-Ray Powder Diffraction

4.533(20),
3.274(50),
3.234(100),
2.654(90),
2.598(30),
2.310(30),
2.182(30),
2.033(30)

XRD chart Macphersonite

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)

2.5 - 3

VHN (Hardness Vickers)

68 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

6.5

6.468 ( ρ calc. Mineralienatlas )

Instability

+++ verdünnte Säuren

(Co-)Type locality

(Co-)Type locality

UK/Schottland/South Lanarkshire/Leadhills/Susanna Vein

Preface

Author (Name, Year)

Livingstone & Sarp, 1984

References

Livingstone, A. & Sarp, H. (1984): Macphersonite, a new mineral from Leadhills, Scotland, and Saint Prix, France; a polymorph of leadhillite and susannite. Mineralogical Magazine, 48, 227-282.

American Mineralogist (1985): 70: 874.

Steele, I. M., Pluth, J. J. & Livingstone, A. (1998): Crystal structure of macphersonite (Pb4SO4(CO3)2(OH)2) comparison with leadhillite. Mineralogical Magazine, 62, 451-459.

Strunz Mineralogical Tables 9. Edition (2001).

Other languages

German

Macphersonit

Spanish

Macphersonita

Traditional Chinese

Macphersonite

French

Macphersonite

English

Macphersonite

Traditional Chinese

直硫碳鉛石

Simplified Chinese

直硫碳铅石

CNMNC (IMA)-Number

IMA 1982-105

CNMNC symbol

Symbol

Mps

Locations with GPS information

IDs

GUSID (Global unique identifier short form) ehPFzwRYn0G6StqcoKaYBQ
GUID (Global unique identifier) CFC5137A-5804-419F-BA4A-DA9CA0A69805
Database ID 2284