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Incaite

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Potosiit/Incait
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Potosiit/Incait

Mina San José, Oruro Stadt/Bolivien; XX bis 3 mm frei in massiver Erzmatrix; Bildbreite ca. 4,5 cm; Fund März 1991

Collection: Burkhard Dallosch
Copyright: Burkhard Dallosch
Contribution: Erzsucher 2013-07-12
Locality: San José Mine / Oruro, Stadt / Cercado, Provinz / Oruro, Departamento / Bolivien

Collectors Summary

Color grau metallisch
Hardness (Mohs) 2
Cleavages vollkommen
Crystal System monoklin,

Chemism

Chem­ical formula

(Pb,Ag)4Sn4FeSb2S15

Addi­tional chem. informa­tion

Sn(II)-reiche Varietät von Franckeit. Siehe auch Potosíit.

Chem­ical com­po­si­tion

Antimon, Blei, Eisen, Silber, Zinn, Schwefel

Unit weight: 1984.68892 u; Number of atoms in the formula: 26

Info

Empirical formula:

(Pb0.75Ag0.25)4Sn4FeSb2S15

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

24.23

15

57.69

32.0655000

480.9825000

Iron

Fe

2.81

1

3.85

55.8452000

55.8452000

Silver

Ag

5.44

1

3.85

107.8682200

107.8682200

Tin

Sn

23.93

4

15.38

118.7107000

474.8428000

Antimony

Sb

12.27

2

7.69

121.7601000

243.5202000

Lead

Pb

31.32

3

11.54

207.2100000

621.6300000

Anal­y­sis wt%

Ø S : 23.20, Pb : 36.53, Ag : 2.15, Sn : 23.09, Sb : 12.70, Fe : 2.35 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 74)

Clas­sifica­tion by Hölzel

2.GB.430

2: SULFIDES
G: SnS Archetype
B: With Cu,Ag,Fe and Pb
4: Cylindrite Franckeite-Group

Dana 8th edi­tion

03.01.04.03

03: Sulfides - Sulfosalts
01: Sulfides - Sulfosalts where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
04: Cylindrite Group

IMA sta­tus

Diskreditiert 2007

Min­eral sta­tus

Varietät

Var­i­ety / poly­type of

Franckeite

Optical Properties

Color

grau metallisch

Crystallography

Crystal Sys­tem

monoklin

Cell param­e­ters a (Å)

17.29

Cell param­e­ters b (Å)

5.79

Cell param­e­ters c (Å)

5.83

Cell param­e­ters a/b or c/a

2.986

Cell param­e­ters c/b

1.007

Cell param­e­ters α

90°

Cell param­e­ters β

94.14°

Cell param­e­ters γ

90°

Volumne (ų)

582.113

X-Ray Pow­der Diffrac­tion

4.31(50),
3.83(30),
3.43(70),
3.23(30),
3.12(30),
2.862(100),
2.058(30),
2.029(80)

XRD chart Incaite

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

Physical Properties

Hard­ness (Mohs)

2

Cleav­ages

vollkommen

Preface

Author (Name, Year)

Makovicky, 1974

References

Neues Jahrbuch für Mineralogie, Monatshefte (1974), 235

Diskreditiert nach Y. Moelo et al., Europ. Journal of Mineralogy 20 (2008) S.7-46. Zit. in Lapis 4/2008, S.38.

Other languages

German

Incait

French

Incaite

English

Incaite

Spanish

Incaíta

Simplified Chinese

硫锑锡铁铅矿

CNMNC (IMA)-Number

IMA 1973-059

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Incait
Google-Bilder-Suche - search for: Incait
Mineralienatlas.de (Forum) - search for: Incait

English pages

Mindat - search for: Incaite
Webmineral - search for:Incaite
Handbook-of-Mineralogy - search for: Incaite
RRUFF - Raman, XRD and other mineral data - search for: Incaite
RRUFF - References and PDF downloads - search for: Incaite
American-Mineralogist-Crystal-Structure-Database - search for: Incaite
Strahlen.org - search for: Incaite

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Incait
Crystal-Treasure.com - search for: Incait
Bosse - search for: Incait
Edelsteine Neuburg - Gundolf Fischer - search for: Incait

Locations with GPS information