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Kerstenite (Kerstenit)

Pictures (2 Images total)

Kerstenit xx ?
Views (File:
1455723251
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Kerstenit xx ?
als feinnadelige weißlich bis leicht gelbliche xx mit seidigem Glanz auf Chalkomenit xx. El Dragon Mine,Potosi, Bolivien; optisch bestimmt !; Bildbreite: 3 mm
Copyright: loismin; Contribution: loismin
Collection: loismin
Location: Bolivien/Potosí, Departamento/Antonio Quijarro, Provinz/El Dragón Mine
Mineral: Kerstenite
Image: 1455723251
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Kerstenit xx ?

als feinnadelige weißlich bis leicht gelbliche xx mit seidigem Glanz auf Chalkomenit xx. El Dragon Mine,Potosi, Bolivien; optisch bestimmt !; Bildbreite: 3 mm
Collection: loismin
Copyright: loismin
Contribution: loismin 2016-02-17
Locality: El Dragón Mine / Antonio Quijarro, Provinz / Potosí, Departamento / Bolivien
nadelig faseriger gelber Kerstenit (visuell bestimmt)
Views (File:
1598450249
): 235
nadelig faseriger gelber Kerstenit (visuell bestimmt)
Bolivien/Potosi, Departamento/Antonio Quijarro, Provinz/El Dragón Mine, BB = 2,7 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A043049, Donator: anatase2
Location: Bolivien/Potosí, Departamento/Antonio Quijarro, Provinz/El Dragón Mine
Mineral: Kerstenite
Image: 1598450249
License: Usage for Mineralienatlas project only
nadelig faseriger gelber Kerstenit (visuell bestimmt) (SNr: A043049)

Bolivien/Potosi, Departamento/Antonio Quijarro, Provinz/El Dragón Mine, BB = 2,7 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2020-08-26
Locality: El Dragón Mine / Antonio Quijarro, Provinz / Potosí, Departamento / Bolivien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos, grünlichgelb, gelb
Streak color weiß
Hardness (Mohs) 3.5
Cleavages {???} undeutlich
Solubility +++ warme HNO3 1:1
Crystal System orthorhombisch, Pnma

Additional information / Summary

Kerstenite (nach Dana) = Molybdomenit (Eur. J. Mineral. 6 (1994), 337 and Plinius 28 (2002), 235-236; ebenso Olsacherit)

Chemism

Chemical formula

PbSeO4

Additional chem. information

Kerstenite (nach Dana) = Molybdomenit

Chemical composition

Blei, Selen, Sauerstoff

Unit weight: 350.17072 u; Number of atoms in the formula: 6

Info

Empirical formula:

PbSeO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

18.28

4

66.67

15.9994300

63.9977200
Selenium

Se

22.55

1

16.67

78.9630000

78.9630000
Lead

Pb

59.17

1

16.67

207.2100000

207.2100000

Analysis wt%

PbO : 63.74, SeO3 : 36.26 (Ref: berechnet)

Classification by Hölzel

7.AD.310

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
A: Sulfates (-Anions -Water)
D: Barite-Group

IMA status

aberkannt, IMA Massendiskreditierung 11/2006 (Antrag 06-C)

Optical Properties

Color

farblos, grünlichgelb, gelb

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.02
Birefringence chart\! Kerstenite title=Birefringence chart Kerstenite

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

1.96

RI value β

1.976

RI value γ / ε

1.98

Ri mean

1.972

2V angle

Biaxial (-) 50°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell parameters a (Å)

5.50

Cell parameters b (Å)

7.04

Cell parameters c (Å)

8.48

Cell parameters a/b or c/a

0.781

Cell parameters c/b

1.205

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

328.346

X-Ray Powder Diffraction

4.31(50),
3.86(30),
3.36(70),
3.25(70),
3.03(100),
2.74(30),
2.09(70),
2.04(50)
XRD chart Kerstenite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.5

Density (g/cm³)

7.08

7.083 ( ρ calc. Mineralienatlas )

Cleavages

{???} undeutlich

Instability

+++ warme HNO3 1:1

Preface

Author (Name, Year)

Dana, 1868

References

Canadian Mineralogist 44 (2006), 1617

Other languages

German

Kerstenit

Spanish

Kerstenita

French

Kerstenite

English

Kerstenite

Simplified Chinese

黄硒铅矿

Alternative Name

Lead selenate

Locations with GPS information

IDs

GUSID (Global unique identifier short form) q9eykUymz0ujtiIlNen76Q
GUID (Global unique identifier) 91B2D7AB-A64C-4BCF-A3B6-222535E9FBE9
Database ID 1924