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Stenhuggarite

Collectors Summary

Color orange
Streak color hellgelb
Hardness (Mohs) 4
Fracture muschelig
Crystal System tetragonal, I41/a

Chemism

Chemical formula

CaFe3+Sb3+As3+2O7

Chemical composition

Antimon, Arsen, Calcium, Eisen, Sauerstoff

Unit weight: 479.522914 u; Number of atoms in the formula: 12

Info

Empirical formula:

CaFeSbAs2O7

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

23.36

7

58.33

15.9994300

111.9960100

Calcium

Ca

8.36

1

8.33

40.0784000

40.0784000

Iron

Fe

11.65

1

8.33

55.8452000

55.8452000

Arsenic

As

31.25

2

16.67

74.9216020

149.8432040

Antimony

Sb

25.39

1

8.33

121.7601000

121.7601000

Analysis wt%

CaO : 11.70, Fe2O3 : 16.65, Sb2O3 : 30.40, As2O3 : 41.26 (Ref: berechnet)

Strunz 9th edition incl. updates

4.JB.35

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
J: Antimonite, Bismuthite, Sulfite, Selenite, Tellurite
B: [Arsenite], [Antimonite], [Bismuthite]; mit zusätzlichen [Anionen], ohne H20
35:Stenhuggarit-Gruppe

Lapis Classification

IV/J.09-010

IV: OXIDE
J: Arsenite (mit As3+)
9: Arsenite mit Ringstruktur [As4O8] 4-

Classification by Hölzel

5.JB.200

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
J: Arsenites
B: Arsenites (+Anions -Water)

Dana 8th edition

46.01.04.01

46: Basic or Halogen-Containing Antimonites, Arsenites and Phosphites
01: Basic or Halogen-Containing Antimonites, Arsenites and Phosphites where (A B)m (XO3)p Zq

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

orange

Streak color

hellgelb

Diaphaneity (Transparency)

transparent, durchscheinend

RI value α / ω / n

1.917

Ri mean

1.917

2V angle

Uniaxial

Absorption

stark; n = > 4

Crystallography

Crystal System

tetragonal

Class (H-M)

4/m

Space Group number

88

Space Group

I41/a

Cell parameters a (Å)

16.144

Cell parameters b (Å)

-

Cell parameters c (Å)

10.706

Cell parameters a/b or c/a

0.663

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

16

Volume (ų)

2790.291

X-Ray Powder Diffraction

8.00(20),
5.92(30),
4.84(20),
2.985(100),
2.548(30),
1.845(40),
1.544(30),
1.196(20)

XRD chart Stenhuggarite

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)

4

VHN (Hardness Vickers)

160 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.63 (gemessen)

4.566 ( ρ calc. Mineralienatlas )

Fracture

muschelig

(Co-)Type locality

(Co-)Type locality

Schweden/Värmland, Provinz/Filipstad, Gemeinde/Långban, Distrikt/Långban Fe-Mn-(Ba-As-Pb-Sb) Lagerstätte

Type material

Swedish Museum of Natural History, Stockholm, Schweden

The Natural History Museum, London, England

National Museum of Natural History, Washington, D.C., USA

Collection number of type material

1969,117 (England); 120066 (USA)

Preface

Name from

Von schwedischen "stenhuggar", das heißt "Steinmetz" für Brian Harold Mason (1917-2009), ein neuseeländisch-amerikanischer Geochemiker, Mineraloge und Meteoritenkundler.

Author (Name, Year)

Moore, 1970

References

Arkiv för Mineralogi och Geologi 5 (1970), 55

Acta Crystallographica B33 (1977), 1807

Other languages

German

Stenhuggarit

Spanish

Stenhuggarita

French

Stenhuggarite

English

Stenhuggarite

Russian

Стенхуггарит

CNMNC (IMA)-Number

IMA 1966-037

CNMNC symbol

Symbol

Shu

Locations with GPS information

IDs

GUSID (Global unique identifier short form) -jz5rpGJ4UmLlgFp_EyLHQ
GUID (Global unique identifier) AEF93CFA-8991-49E1-8B96-0169FC4C8B1D
Database ID 3618