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Bartonite (Bartonit)

Collectors Summary

Color gelblich grün-grau zu gelblich grün-braun
Streak color schwarz
Hardness (Mohs) 3.5
Solubility +++ heiße HNO3 und HCl
Crystal System tetragonal, I4/mmm

Chemism

Chemical formula

K6Fe20S26S

Chemical composition

Eisen, Kalium, Schwefel

Unit weight: 2217.26236 u; Number of atoms in the formula: 53

Info

Empirical formula:

K6Fe20S26S

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

39.05

27

50.94

32.0655000

865.7685000
Potassium

K

10.58

6

11.32

39.0983100

234.5898600
Iron

Fe

50.37

20

37.74

55.8452000

1,116.9040000

Strunz 9th edition incl. updates

2.FC.10

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
F: Sulfide, Arsenide, Alkaide; Sulfide mit Halogeniden, Oxiden, Hydroxiden (H2O)
C: mit Cl, Br, I (Halide-Sulfide)
10:Bartonit-Gruppe

Lapis Classification

II/F.07-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
F: Sulfide mit nichtmetallischem Charakter
7: Alkalisulfide

Classification by Hölzel

2.KB.200

2: SULFIDES
K: Nonmetallic Sulfides, HalideSulfides, etc.
B: With Cl,(Br,I)
2: Djerfisherite-Bartonite-Group

Dana 8th edition

02.09.19.01

02: Sulfide Minerals
09: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
19: Bartonite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelblich grün-grau zu gelblich grün-braun

Streak color

schwarz

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

139

Space Group

I4/mmm

Cell parameters a (Å)

10.424

Cell parameters b (Å)

-

Cell parameters c (Å)

20.626

Cell parameters a/b or c/a

1.979

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volumne (ų)

2241.217

X-Ray Powder Diffraction

9.31(30),
5.99(80),
3.139(30),
2.998(100),
2.389(20),
2.379(20),
1.841(20),
1.833(40)
XRD chart Bartonite

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)

3.5

VHN (Hardness Vickers)

104 (15g)

Density (g/cm³)

3.305

3.285 ( ρ calc. Mineralienatlas )

Instability

+++ heiße HNO3 und HCl

(Co-)Type locality

(Co-)Type locality

USA/Kalifornien (California)/Humboldt Co./Orick/Coyote Peak

Preface

Author (Name, Year)

Czamanske & Erd & Leonard & Clark, 1981

References

American Mineralogist 66 (1981), 369

Other languages

German

Bartonit

Spanish

Bartonita

English

Bartonite

French

Bartonite

Russian

Бартонит

Traditional Chinese

巴硫鐵鉀礦

Simplified Chinese

巴硫铁钾矿

Japanese

ﾊﾞｰﾄﾝ石

Alternative Name

Traditional Chinese

褐硫鐵鉀礦

Simplified Chinese

褐硫铁钾矿

CNMNC (IMA)-Number

IMA 1977-039

CNMNC symbol

Symbol

Btn

Locations with GPS information