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Carlsonite (Carlsonit)

Collectors Summary

Color gelb, orange-braun
Streak color hellbraun
Lustre Glasglanz
Hardness (Mohs) 2
Cleavages vollkommen {001}
Solubility einfach löslich in H2O
Crystal System triklin, P1
Morphology dicke Tafeln, abgeflacht auf {001} oder dicke Prismen, längliche auf [110], bis zu etwa 0,5 mm groß.

Chemism

Chemical formula

(NH4)5Fe3+3O(SO4)6·7H2O

Empirical formula (analysis)

[(NH4)4.64Na0.24K0.12]Σ5.00Fe3+3.05O(SO4)6·6.93H2O

Chemical composition

Eisen, Sauerstoff, Schwefel, Stickstoff, Wasserstoff

Unit weight: 981.460824488 u; Number of atoms in the formula: 78.4

Info

Empirical formula:

[(NH4)4.64Na0.24K0.12]Fe3.05O(SO4)6·6.93H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.33

32.42

41.35

1.0079470

32.6776417

Nitrogen

N

6.62

4.64

5.92

14.0067200

64.9911808

Oxygen

O

52.05

31.93

40.73

15.9994300

510.8617999

Sodium

Na

0.56

0.24

0.31

22.9897702

5.5175448

Sulfur

S

19.60

6

7.65

32.0655000

192.3930000

Potassium

K

0.48

0.12

0.15

39.0983100

4.6917972

Iron

Fe

17.35

3.05

3.89

55.8452000

170.3278600

Strunz 9th edition incl. updates

7.DF.35

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
F: mit großen und mittelgroßen Kationen
35:Metavoltin-Gruppe

Lapis Classification

VI/D.15-040

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
15: Mittelgroße und sehr große Kationen

IMA status

von der CNMNC anerkanntes Mineral; CNMNC Newsletter No. 23, Februar 2015

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb, orange-braun

Streak color

hellbraun

Lustre

Glasglanz

max. Birefringence

0.015

Birefringence chart\! Carlsonite title=Birefringence chart Carlsonite

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

α = 1.576(1)

RI value β

β = 1.585(1)

RI value γ / ε

γ = 1.591(1)

Ri mean

1.584

2V angle

Biaxial (-)

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

9.5927(2)

Cell parameters b (Å)

9.7679(3)

Cell parameters c (Å)

18.3995(13)

Cell parameters a/b or c/a

0.982

Cell parameters c/b

1.884

Cell parameters α

93.250(7)°

Cell parameters β

95.258(7)°

Cell parameters γ

117.993(8)°

Z

2

Volume (ų)

1506.155

Crystal structure

Strukturmäßig verwandt mit Metavoltin

X-Ray Powder Diffraction

9.23(100), 8.26(40), 7.57(43), 4.93(23), 3.328(20), 3.246(15), 3.144(41), 3.035(16)

XRD chart Carlsonite

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

Morphology

dicke Tafeln, abgeflacht auf {001} oder dicke Prismen, längliche auf [110], bis zu etwa 0,5 mm groß.

Physical Properties

Hardness (Mohs)

2

Density (g/cm³)

2.167 (berechnet)

2.164 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {001}

Tenacity

spröde

Instability

einfach löslich in H2O

(Co-)Type locality

(Co-)Type locality

USA/Ohio/Erie Co./Milan Village/Huron River (Carlsonit Fundstelle)

Type material

Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, USA

Collection number of type material

65544 und 65545

Preface

Name from

Ernest H. Carlson (1933–2010), ehemaliger Professor der Mineralogie an der Kent State University

Author (Name, Year)

Anthony R. Kampf, R. Peter Richards, Barbara P. Nash and James B. Murowchick

References

Kampf, A.R., Richards, R.P., Nash, B.P. and Murowchick, J.B. (2015) Carlsonite, IMA 2014-067. CNMNC Newsletter No. 23, February 2015, page 53; Mineralogical Magazine, 79, 51-58.

Kampf, A.R., Richards, R.P., Nash, B.P., Murowchick, J.B., Rakovan, J. - Carlsonite, (NH4)5Fe3+3O(SO4)6·7H2O and huizingite-(Al), (NH4)9Al3(SO4)8(OH)2·4H2O, two new minerals from a natural fire in an oil-bearing shale near Milan, Ohio. American Mineralogist, 101 (2016), (submitted).

Other languages

German

Carlsonit

English

Carlsonite

CNMNC (IMA)-Number

IMA 2014-067

CNMNC symbol

Symbol

Csn

Locations with GPS information

IDs

GUSID (Global unique identifier short form) qfuExWXcCkShPLrOyzD3CA
GUID (Global unique identifier) C584FBA9-DC65-440A-A13C-BACECB30F708
Database ID 7868