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Jarosewichite (Jarosewichit)

Additional Functions

Collectors Summary

Color dunkelrot
Streak color rötlich orange
Lustre Halbglasglanz, Harzglanz, Fettglanz
Hardness (Mohs) 4
Crystal System orthorhombisch, Cmmm, Cmm2, C222
Morphology Kristalle sind prismatisch, tonnenförmig, länglich entlang [100], abgeflacht {010} mit {021}, Mit sechsseitigen Abschnitten, bis 1 mm; typischerweise als divergente Zweige von prismatischen Kristallen

Chemism

Chemical formula

Mn2+3Mn3+(AsO4)(OH)6

Chemical composition

Arsen, Mangan, Sauerstoff, Wasserstoff

Unit weight: 460.7157836 u; Number of atoms in the formula: 21

Info

Empirical formula:

Mn3Mn(AsO4)(OH)6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.31

6

28.57

1.0079470

6.0476820

Oxygen

O

34.73

10

47.62

15.9994300

159.9943000

Manganese

Mn

47.70

4

19.05

54.9380499

219.7521996

Arsenic

As

16.26

1

4.76

74.9216020

74.9216020

Strunz 9th edition incl. updates

8.BE.70

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
E: Mit ausschließlich mittelgroßen [Kationen] (OH, etc.):RO4 > 2:1
70:Jarosewichit-Gruppe

Lapis Classification

VII/B.17-030

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
17: Mittelgroße Kationen: Mg-Mn-Fe-Cu-Zn

Classification by Hölzel

8.BE.260

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
E: Phosphates, C medium, V:2,3
2: Orthorhombic

Dana 8th edition

41.01.01.03

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
01: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A++)m (XO4)p Zq, with m:p>4:1
01: Phoenicite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

dunkelrot

Streak color

rötlich orange

Diaphaneity (Transparency)

durchscheinend

Lustre

Halbglasglanz, Harzglanz, Fettglanz

max. Birefringence

0.025

Birefringence chart\! Jarosewichite title=Birefringence chart Jarosewichite

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 = 1.780(5)

RI value β

β = 1.795(5)

RI value γ / ε

γ = 1.805(5)

Ri mean

1.793

2V angle

Biaxial (-) 78° (berechnet)

Orientation

X = a;Y = b; Z = c

Absorption

Z > X

Pleochroism

schwach; X = mittel bräunlich rot; Z = dunkel bräunlich rot

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

orthorhombisch

Class (H-M)

222, mmm, mm2

Space Group number

21, 65, 35

Space Group

Cmmm, Cmm2, C222

Cell parameters a (Å)

6.56

Cell parameters b (Å)

25.20

Cell parameters c (Å)

10.00

Cell parameters a/b or c/a

0.260

Cell parameters c/b

0.397

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volumne (ų)

1653.12

X-Ray Powder Diffraction

6.29(20),
3.91(60),
2.669(100),
2.503(30),
1.788(50),
1.576(20),
1.558(30),
1.501(20)

XRD chart Jarosewichite

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

Morphology

Kristalle sind prismatisch, tonnenförmig, länglich entlang [100], abgeflacht {010} mit {021}, Mit sechsseitigen Abschnitten, bis 1 mm; typischerweise als divergente Zweige von prismatischen Kristallen

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.66(4) (gemessen) 3.70 (berechnet)

3.702 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

USA/New Jersey/Sussex Co./Franklin Mining District/Franklin/Buckwheat Pit (Southwest Opening, Buckwheat Mine)

Type material

Harvard University, Cambridge, Massachusetts, 109463; National Museum of Natural History, Washington, D.C., USA

Collection number of type material

148972

Paragenesis of type material

Hausmannit, Franklinit, Flinkit, Cahnit, Andradit

Preface

Name from

1982 benannt von Pete J. Dunn, Donald R. Peacor, Peter B. Leavens und William B. Simmons zu Ehren von Eugene Jarosewich [6. Januar 1926 - 30. April 2007 Washington, District of Columbia, USA] Mineral- und Meteoriten Chemiker, Department of Mineral Sciences, Smithsonian Institution. Jarosewich etablierte analytische Standardmaterialien für Mikroanalyse und etablierte analytische Standardmaterialien für Meteoriten.

Author (Name, Year)

Dunn & Peacor & Leavens & Simmons, 1982

References

Dunn, P.J., D.R. Peacor, P.B. Leavens, and W.B. Simmons - Jarosewichite and a related phase: basic manganese arsenates of the chlorophoenicite group from Franklin, New Jersey. Amer. Mineral., 67 (1982), 1043–1047

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Jarosewichite

Mn2+3Mn3+(AsO4)(OH)6

orthorhombisch : 222, mmm, mm2 : Cmmm, Cmm2, C222

8.BE.70

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Magnesiochlorophoenicite

(Mg,Mn)3Zn2(AsO4)(OH,O)6

monoklin : 2/m : C2/m

VII/B.17-010

Chlorophoenicite

(Mn,Mg)3Zn2(AsO4)(OH,O)6

monoklin : 2/m : C2/m

VII/B.17-020

Jarosewichite

Mn2+3Mn3+(AsO4)(OH)6

orthorhombisch : 222, mmm, mm2 : Cmmm, Cmm2, C222

VII/B.17-030

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Rockbridgeite

(Fe2+,Mn)Fe43+(PO4)3(OH)5

orthorhombisch : mmm : Bbmm

8.BE.200

Plimerite

ZnFe3+4(PO4)3(OH)5

orthorhombisch : mmm : Cmcm

8.BE.205

Frondelite

Mn2+Fe3+4(PO4)3(OH)5

orthorhombisch : mmm : Bbmm

8.BE.210

Flinkite

Mn2+2Mn3+(AsO4)(OH)4

orthorhombisch : mmm : Pnma

8.BE.240

Jarosewichite

Mn2+3Mn3+(AsO4)(OH)6

orthorhombisch : 222, mmm, mm2 : Cmmm, Cmm2, C222

8.BE.260

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Chlorophoenicite

(Mn,Mg)3Zn2(AsO4)(OH,O)6

monoklin : 2/m : C2/m

41.01.01.01

Magnesiochlorophoenicite

(Mg,Mn)3Zn2(AsO4)(OH,O)6

monoklin : 2/m : C2/m

41.01.01.02

Jarosewichite

Mn2+3Mn3+(AsO4)(OH)6

orthorhombisch : 222, mmm, mm2 : Cmmm, Cmm2, C222

41.01.01.03

Theisite

Cu5Zn5(As5+,Sb5+)2O8(OH)14

41.01.02.01

Sabelliite

Cu2Zn[(OH)3|(As,Sb)O4]

trigonal : 3 : P3

41.01.02.02

Georgiadesite

Pb4(As3+O3)Cl4(OH)

monoklin : 2/m : P21/c

41.01.03.01

Sahlinite

Pb14(AsO4)O9Cl4

monoklin : 2/m : C2/c

41.01.04.01

Kombatite

Pb14(VO4)2O9Cl4

monoklin : 2/m : C2/c

41.01.04.02

Other languages

German

Jarosewichit

Spanish

Jarosewichita

French

Jarosewichite

English

Jarosewichite

Russian

Ярозевичит

Japanese

ジャロセウィチ石

IMA Number

IMA 1981-060

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

German pages

DeWikiPedia - search for: Jarosewichit
Google-Bilder-Suche - search for: Jarosewichit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Jarosewichit

English pages

Mindat - search for: Jarosewichite
Webmineral - search for:Jarosewichite
Handbook-of-Mineralogy - search for: Jarosewichite
RRUFF - Raman, XRD and other mineral data - search for: Jarosewichite
RRUFF - References and PDF downloads - search for: Jarosewichite
American-Mineralogist-Crystal-Structure-Database - search for: Jarosewichite
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Russian pages

Webmineral.ru - search for: Ярозевичит

Mineral Dealer

German pages

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