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Baumstarkite

Pictures (4 Images total)

Baumstarkit
Views (File:
1299943566
): 2076, Rating: 7
Baumstarkit
Größe: 6,1 x 4,2 x 2,7 cm, Fundort: San Genaro Mine, Castrovirreyna, Huancavelica, Peru
Copyright: Rob Lavinsky; Contribution: thdun5
Location: Peru/Huancavelica, Region/Castrovirreyna, Provinz/Castrovirreyna, Distrikt/San Genaro Mine
Mineral: Baumstarkite
Image: 1299943566
Rating: 7 (votes: 5)
License: Usage for Mineralienatlas project only
Baumstarkit

Größe: 6,1 x 4,2 x 2,7 cm, Fundort: San Genaro Mine, Castrovirreyna, Huancavelica, Peru
Copyright: Rob Lavinsky
Contribution: thdun5 2011-03-12
Locality: San Genaro Mine / Castrovirreyna, Distrikt / Castrovirreyna, Provinz / Huancavelica, Region / Peru
Baumstarkit
Views (File:
1584810110
): 294
Baumstarkit
Bildbreite: 1 mm; Fundort: Neuenberg, Sainte-Marie-aux-Mines, Ribeauvillé, Arrondissement, Haut-Rhin, Grand Est, FR
Copyright: Thierry Brunsperger; Contribution: slugslayer
Location: Frankreich/Grand Est, Region/Haut-Rhin, Département/Colmar-Ribeauvillé, Arrondissement/Sainte-Marie-aux-Mines (Markirch)/Neuenberg
Mineral: Baumstarkite
Image: 1584810110
License: Usage for Mineralienatlas project only
Baumstarkit

Bildbreite: 1 mm; Fundort: Neuenberg, Sainte-Marie-aux-Mines, Ribeauvillé, Arrondissement, Haut-Rhin, Grand Est, FR
Copyright: Thierry Brunsperger
Contribution: slugslayer 2020-03-21
Locality: Neuenberg / Sainte-Marie-aux-Mines (Markirch) / Colmar-Ribeauvillé, Arrondissement / Haut-Rhin, Département / Grand Est, Region / Frankreich
Baumstarkit
Views (File:
1584810130
): 247
Baumstarkit
Bildbreite: 1 mm; Fundort: Neuenberg, Sainte-Marie-aux-Mines, Ribeauvillé, Arrondissement, Haut-Rhin, Grand Est, FR
Copyright: Thierry Brunsperger; Contribution: slugslayer
Location: Frankreich/Grand Est, Region/Haut-Rhin, Département/Colmar-Ribeauvillé, Arrondissement/Sainte-Marie-aux-Mines (Markirch)/Neuenberg
Mineral: Baumstarkite
Image: 1584810130
License: Usage for Mineralienatlas project only
Baumstarkit

Bildbreite: 1 mm; Fundort: Neuenberg, Sainte-Marie-aux-Mines, Ribeauvillé, Arrondissement, Haut-Rhin, Grand Est, FR
Copyright: Thierry Brunsperger
Contribution: slugslayer 2020-03-21
Locality: Neuenberg / Sainte-Marie-aux-Mines (Markirch) / Colmar-Ribeauvillé, Arrondissement / Haut-Rhin, Département / Grand Est, Region / Frankreich
Baumstarkit
Views (File:
1584810148
): 237
Baumstarkit
Bildbreite: 1,3 mm; Fundort: Neuenberg, Sainte-Marie-aux-Mines, Ribeauvillé, Arrondissement, Haut-Rhin, Grand Est, FR
Copyright: Thierry Brunsperger; Contribution: slugslayer
Location: Frankreich/Grand Est, Region/Haut-Rhin, Département/Colmar-Ribeauvillé, Arrondissement/Sainte-Marie-aux-Mines (Markirch)/Neuenberg
Mineral: Baumstarkite
Image: 1584810148
License: Usage for Mineralienatlas project only
Baumstarkit

Bildbreite: 1,3 mm; Fundort: Neuenberg, Sainte-Marie-aux-Mines, Ribeauvillé, Arrondissement, Haut-Rhin, Grand Est, FR
Copyright: Thierry Brunsperger
Contribution: slugslayer 2020-03-21
Locality: Neuenberg / Sainte-Marie-aux-Mines (Markirch) / Colmar-Ribeauvillé, Arrondissement / Haut-Rhin, Département / Grand Est, Region / Frankreich

Collectors Summary

Color eisenschwarz, bräunlichschwarz-metallisch
Streak color grauschwarz
Lustre Metallglanz
Hardness (Mohs) 2.5
Cleavages vollkommen {001} und weniger vollkommen {100}, kein Bruch
Fracture eben
Crystal System triklin, P1
Morphology in idiomorphen Kristallen bis 3 mm und Kristallaggregaten bis 40 x 10 mm; auch in xenomorphen Einschlüssen in Miargyrit; Pinakoide {001}, {101}, {201}, {010}, {011}, {100}

Chemism

Chemical formula

Ag3Sb3S6

Additional chem. information

Isotyp mit Aramayoit

Chemical composition

Antimon, Silber, Schwefel

Unit weight: 881.27796 u; Number of atoms in the formula: 12

Info

Empirical formula:

Ag3Sb3S6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

21.83

6

50.00

32.0655000

192.3930000
Silver

Ag

36.72

3

25.00

107.8682200

323.6046600
Antimony

Sb

41.45

3

25.00

121.7601000

365.2803000

Analysis wt%

Ø Ag : 36.30, Sb : 40.20, As : 0.70, S : 22.00 (Ref: American Mineralogist 2002)

Strunz 9th edition incl. updates

2.HA.25

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
H: Sulfosalze mit SnS als Vorbild
A: Mit Cu, Ag, Fe (ohne Pb)
25:Aramayoit-Gruppe

Lapis Classification

II/C.16-015

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1

Classification by Hölzel

2.GA.160

2: SULFIDES
G: SnS Archetype
A: With Cu,Ag,Fe (without Pb)
1: Chalcostibite-Group

Dana 8th edition

03.07.04.02

03: Sulfides - Sulfosalts
07: Sulfides - Sulfosalts where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

eisenschwarz, bräunlichschwarz-metallisch

Streak color

grauschwarz

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Pleochroism

keiner

Bireflectance

schwach bis deutlich von weiß nach grau

Anisotropism

weiß nach grau (schwach braun) bis dunkelblau, rote Innenreflexe

Reflectivity: (Lambda nm) ↓, ↑, Ø

(400) 33.20, 41.00, 37.10
(420) 32.70, 40.80, 36.75
(440) 32.20, 40.20, 36.20
(460) 31.60, 39.60, 35.60
(480) 31.10, 39.50, 35.30
(500) 30.40, 38.80, 34.60
(520) 30.00, 38.10, 34.05
(540) 29.40, 37.40, 33.40
(560) 28.60, 36.80, 32.70
(580) 28.10, 36.40, 32.25
(600) 27.60, 35.70, 31.65
(620) 27.07, 34.60, 30.84
(640) 26.40, 33.60, 30.00
(660) 25.90, 32.70, 29.30
(680) 25.40, 32.40, 28.90
(700) 25.20, 31.30, 28.25
Reflection chart Baumstarkite

Reflectivity Ø

32.93

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

7.766

Cell parameters b (Å)

8.322

Cell parameters c (Å)

8.814

Cell parameters a/b or c/a

0.933

Cell parameters c/b

1.059

Cell parameters α

100.62

Cell parameters β

104.03

Cell parameters γ

90.22

Z

2

Volumne (ų)

542.474

X-Ray Powder Diffraction

3.425(10),
3.224(10),
2.841(10),
2.798(100),
2.013(10),
1.971(10),
1.3994(10)
XRD chart Baumstarkite

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

Morphology

in idiomorphen Kristallen bis 3 mm und Kristallaggregaten bis 40 x 10 mm; auch in xenomorphen Einschlüssen in Miargyrit; Pinakoide {001}, {101}, {201}, {010}, {011}, {100}

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

89 (25g)

Density (g/cm³)

5.33 (gemessen) 5.39 (berechent)

5.395 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {001} und weniger vollkommen {100}, kein Bruch

Fracture

eben

Tenacity

schneidbar

(Co-)Type locality

(Co-)Type locality

Peru/Huancavelica, Region/Castrovirreyna, Provinz/Castrovirreyna, Distrikt/San Genaro Mine

Type material

Mineralogical Institute, Universität Salzburg

Natural History Museum, London

Collection number of type material

Salzburg: 14524 und 14525

London: BM 2000,32 und BM2000,33

Preface

Generation conditions

Hydrothermale Fluide mit hohen Ag, Sb und S-Aktivitäten

Associations

Miargyrit, Pyrargyrit, Stannit, Kesterit, Andorit, Diaphorit, Robinsonit, Galenit, Chalkopyrit, Sphalerit, Pyrit

Name from

Manfred Baumstark (*1954), Deutscher Mineraloge, der das Typmatierial zur Verfügung stellte

Author (Name, Year)

Effenberger & Paar & Topa & Criddle & Fleck, 2002

Additional Information

Name zu Ehren von Dipl.-Min. Manfred Baumstark (*1954), Mineraloge, Deutschland

References

American Mineralogist 87 (2002), 753

Other languages

German

Baumstarkit

Spanish

Baumstarkita

English

Baumstarkite

French

Baumstarkite

Russian

Баумстаркит

Japanese

ﾊﾞｳﾑｽﾀｰｸ鉱

CNMNC (IMA)-Number

IMA 1999-049

CNMNC symbol

Symbol

Bum

Locations with GPS information

IDs

GUSID (Global unique identifier short form) bpTEtk1FDESnUbSoZdSC9Q
GUID (Global unique identifier) B6C4946E-454D-440C-A751-B4A865D482F5
Database ID 321