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Zoisite-(Pb) (Zoisit-(Pb))

Collectors Summary

Color blaß rosa
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 6-7 geschätzt aufgrund der Verwandtschaft mit Zoisit
Cleavages vollkommen nach {010}
Crystal System orthorhombisch, Pnma
Morphology Kristalle bis 0.3 mm

Additional information / Summary

Zoisit-(Pb) ist das bleihaltige Pb oder eher BleiCalcium CaPb Analogon von Zoisit. Chemisch ist es ähnlich Wickenburgit und Maricopait sowie komplexer Hancockit und Piemontit-(Pb).

Chemism

Chem­ical formula

CaPbAl3[Si2O7][SiO4]O(OH)

Empir­ical formula (anal­y­sis)

(Ca1.09Pb0.86Mn2+0.01Na0.01)Σ1.97(Al2.88Fe3+0.10Mn3+0.04)Σ3.02Si3.00O12(OH)1.00

Chem­ical com­po­si­tion

Aluminium, Blei, Calcium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 601.411333213 u; Number of atoms in the formula: 21.99

Info

Empirical formula:

(Ca1.09Pb0.86Mn0.01Na0.01)(Al2.88Fe0.10Mn0.04)Si3.00O12(OH)1.00

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.17

1

4.55

1.0079470

1.0079470
Oxygen

O

34.58

13

59.12

15.9994300

207.9925900
Sodium

Na

0.04

0.01

0.05

22.9897702

0.2298977
Aluminium

Al

12.92

2.88

13.10

26.9815382

77.7068300
Silicon

Si

14.01

3

13.64

28.0855300

84.2565900
Calcium

Ca

7.26

1.09

4.96

40.0784000

43.6854560
Manganese

Mn

0.46

0.05

0.23

54.9380499

2.7469025
Iron

Fe

0.93

0.1

0.45

55.8452000

5.5845200
Lead

Pb

29.63

0.86

3.91

207.2100000

178.2006000

IMA sta­tus

anerkannt - CNMNC Newsletter 62, Juni - Juli 2021

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

 Epidote supergroup

Optical Properties

Color

blaß rosa

Streak color

weiß

Diaphane­ity (Trans­parency)

durchsichtig

Lus­tre

Glasglanz

Optical Data Luminescence

Lumi­nes­cence

fehlt

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell param­e­ters a (Å)

16.3978(6)

Cell param­e­ters b (Å)

5.5953(2)

Cell param­e­ters c (Å)

10.1953(3)

Cell param­e­ters a/b or c/a

2.931

Cell param­e­ters c/b

1.822

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Volumne (ų)

935.425

Kristall struc­ture

Epidot-Supergruppe; Struktur ermittelt, wie bei Zoisit

X-Ray Pow­der Diffrac­tion

8.63(s), 8.11(mw), 4.895(m), 4.210(m), 3.660(s), 3.097(mw), 2.900(s), 2.725(m)

Morphol­ogy

Kristalle bis 0.3 mm

Physical Properties

Hard­ness (Mohs)

6-7 geschätzt aufgrund der Verwandtschaft mit Zoisit

Density (g/cm³)

4.13 ber.

Cleav­ages

vollkommen nach {010}

(Co-)Type locality

(Co-)Type locality

Schweden/Värmland, Provinz/Filipstad, Gemeinde/Nordmark (Nordmarksberg)/Jakobsberg

Type mate­r­ial

Das Typenmaterial ist in den mineralogischen Sammlungen des Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italien, unter der Katalognummer 19927 hinterlegt.

Par­a­ge­n­e­sis of type mate­r­ial

Calcit, Celsian, Diopsid, Grossular, Hancockit, Hyalophan, ged. Blei, Phlogopit, Vesuvianit

Preface

Author (Name, Year)

Natale Perchiazzi, Daniela Mauro, Pietro Vignola, Federica Zaccarini, Knut Eldjarn (2022)

References

Perchiazzi, N., Eldjarn, K., Mauro, D. and Vignola, P. (2021) Zoisite-(Pb), IMA 2021-025. CNMNC Newsletter 62; Mineralogical Magazine, 85, https://doi.org/10.1180/mgm.2021.62

Natale Perchiazzi, Daniela Mauro, Pietro Vignola, Federica Zaccarini, Knut Eldjarn: Zoisite-(Pb), a New Orthorhombic Epidote-Related Mineral from the Jakobsberg Mine, Värmland, Sweden, and Its Relationships with Hancockite. Minerals Vol. 12, Nr. 1 (2022) Art-Nr. 51.

IMA group assignments

Other languages

German

Zoisit-(Pb)

English

Zoisite-(Pb)

CNMNC (IMA)-Number

IMA 2021-025

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