Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Jarosewichite

Big Photo

Buckwheat Pit (Southwest Opening; Buckwheat Mine), Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
© 2007, JGW

Formula:
Mn
 
3
MnAsO
 
4
(OH)
 
6
System:OrthorhombicHardness:4
This page provides mineralogical data about Jarosewichite.

Classification of Jarosewichite

IMA status:Approved
Strunz 8th edition ID:7/B.17-30
Nickel-Strunz 10th (pending) edition ID:8.BE.70

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1
Dana 8th edition ID:41.1.1.3

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq, where m:p > 4:1
Hey's CIM Ref.:20.8.5

20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn
mindat.org URL:http://www.mindat.org/min-2077.html
Please feel free to link to this page.

Type Occurrence of Jarosewichite

Type Locality:Buckwheat Pit (Southwest Opening; Buckwheat Mine), Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Year of Discovery:1982

Physical Properties of Jarosewichite

Hardness (Mohs):4

Crystallography of Jarosewichite

Crystal System:Orthorhombic
Cell Parameters:a = 6.56Å, b = 25.2Å, c = 10Å
Ratio:a:b:c = 0.26 : 1 : 0.397
Unit Cell Volume:V 1,653.12 ų (Calculated from Unit Cell)

Optical Data of Jarosewichite

Type:Biaxial (-)
RI values: nα = 1.780 nβ = 1.795 nγ = 1.805
2V:Measured: 78° , Calculated: 76°
Maximum Birefringence:δ = 0.025

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v distinct

Chemical Properties of Jarosewichite

Formula:
Mn
 
3
MnAsO
 
4
(OH)
 
6
Essential elements:As, H, Mn, O
All elements listed in formula:As, H, Mn, O
Common Impurities:Mg

Relationship of Jarosewichite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BE.05Augelite
Al
 
2
[(OH)
 
3
|PO
 
4
]
8.BE.10Grattarolaite
Fe
3+
3
[O
 
3
|PO
 
4
]
8.BE.15Cornetite
Cu
 
3
[(OH)
 
3
|PO
 
4
]
8.BE.20Clinoclase
Cu
 
3
[(OH)
 
3
|AsO
 
4
]
8.BE.25Arhbarite
Cu
 
2
Mg[(OH)
 
3
|AsO
 
4
]
8.BE.25Gilmarite
Cu
 
3
[(OH)
 
3
|AsO
 
4
]
8.BE.30Allactite
Mn
2+
7
(AsO
 
4
)
 
2
(OH)
 
8
8.BE.30Flinkite
Mn
2+
2
Mn
3+
 
AsO
 
4
(OH)
 
4
8.BE.30Raadeite
Mg
 
7
(PO
 
4
)
 
2
(OH)
 
8
8.BE.35Chlorophoenicite
(Mn,Mg)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
8.BE.35Magnesiochlorophoenicite
(Mg,Mn)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
8.BE.40Gerdtremmelite
(Zn,Fe)(Al,Fe)
 
2
AsO
 
4
(OH)
 
5
8.BE.45Dixenite
CuMn
2+
14
Fe
2+
 
[(OH)
 
6
|(AsO
 
3
)
 
5
|AsO
 
4
|(SiO
 
4
)
 
2
]
8.BE.45Hematolite
(Mn,Mg,Al)
 
15
(AsO
 
3
)(AsO
 
4
)
 
2
(OH)
 
23
8.BE.45Kraisslite
(Mn
2+
 
,Mg)
 
24
Zn
 
4
[(OH)
 
12
|(AsO
 
4
)
 
4
|(SiO
 
4
)
 
8
]
8.BE.45Mcgovernite
(Mn,Mg,Zn)
 
273
As
3+
~12
As
5+
~30
Si
 
~42
O
 
324
(OH)
 
252
8.BE.45Arakiite
(Zn,Mn
2+
 
)(Mn
2+
 
,Mg)
 
12
(Fe
3+
 
,Al)
 
2
(AsO
 
3
)(AsO
 
4
)
 
2
(OH)
 
23
8.BE.45Turtmannite
(Mn,Mg)
 
22.5
Mg
 
3-3x
[(V,As)O
 
4
]
 
3
[SiO
 
4
]
 
3
[AsO
 
3
]
 
x
O
 
5-5x
(OH)
 
20+x
8.BE.50Synadelphite
Mn
2+
9
[(OH)
 
9
|As
3+
 
O
 
3
|(As
5+
 
O
 
4
)
 
2
] · 2H
 
2
O
8.BE.55Holdenite
(Mn
2+
 
,Mg)
 
6
Zn
 
3
[(OH)
 
8
|(AsO
 
4
)
 
2
|SiO
 
4
]
8.BE.60Kolicite
Mn
2+
7
Zn
 
4
[(OH)
 
8
|(AsO
 
4
)
 
2
|(SiO
 
4
)
 
2
]
8.BE.65Sabelliite
(Cu,Zn)
 
2
Zn[(OH)
 
3
|(AsO
 
4
,SbO
 
4
)]
8.BE.75Theisite
Cu
 
5
Zn
 
5
[(OH)
 
7
|(AsO
 
4
,SbO
 
4
)]
 
2
8.BE.80Coparsite
Cu
 
4
[O
 
2
|Cl|(AsO
 
4
,VO
 
4
)]
8.BE.85Waterhouseite
Mn
2+
7
[(OH)
 
8
|(PO
 
4
)
 
2
]
Related Minerals - Hey's Index Grouping:

- +
20.8.1Sarkinite
Mn
2+
2
[OH|AsO
 
4
]
20.8.2Eveite
Mn
2+
2
[OH|AsO
 
4
]
20.8.3Arsenoclasite
Mn
2+
5
[(OH)
 
2
|AsO
 
4
]
 
2
20.8.4Flinkite
Mn
2+
2
Mn
3+
 
AsO
 
4
(OH)
 
4
20.8.6Allactite
Mn
2+
7
(AsO
 
4
)
 
2
(OH)
 
8
20.8.7Krautite
MnHAsO
 
4
·H
 
2
O
20.8.8Synadelphite
Mn
2+
9
[(OH)
 
9
|As
3+
 
O
 
3
|(As
5+
 
O
 
4
)
 
2
] · 2H
 
2
O
20.8.9Sterlinghillite
Mn
 
3
(AsO
 
4
)
 
2
·4H
 
2
O
20.8.10Geigerite
Mn
 
5
[HAsO
 
4
|AsO
 
4
]
 
2
 · 10H
 
2
O
20.8.11Akrochordite
(Mn
2+
 
,Mg)
 
5
[(OH)
 
2
|AsO
 
4
]
 
2
 · 4H
 
2
O
20.8.12Manganohörnesite
(Mn,Mg)
 
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.8.13Fluckite
CaMnH
 
2
(AsO
 
4
)
 
2
·2H
 
2
O
20.8.14Brandtite
Ca
 
2
(Mn
2+
 
,Mg)[AsO
 
4
]
 
2
 · 2H
 
2
O
20.8.15Parabrandtite
Ca
 
2
Mn
2+
 
[AsO
 
4
]
 
2
 · 2H
 
2
O
20.8.16Wallkilldellite-(Mn)
Ca
 
2
Mn
2+
3
[(OH)
 
2
|AsO
 
4
]
 
2
 · 9H
 
2
O
20.8.17Berzeliite
NaCa
 
2
(Mg,Mn
2+
 
)
 
2
[AsO
 
4
]
 
3
20.8.18Manganberzeliite
(Ca,Na)
 
3
(Mn
2+
 
,Mg)
 
2
[AsO
 
4
]
 
3
20.8.19Magnesiochlorophoenicite
(Mg,Mn)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
20.8.20Villyaellenite
(Mn,Ca,Zn)
 
5
(AsO
 
3
OH)
 
2
(AsO
 
4
)
 
2
·4H
 
2
O
20.8.21Hematolite
(Mn,Mg,Al)
 
15
(AsO
 
3
)(AsO
 
4
)
 
2
(OH)
 
23
20.8.22Grischunite
NaCa
 
2
Mn
2+
5
Fe
3+
 
[AsO
 
4
]
 
6
 · 2H
 
2
O

Other Names for Jarosewichite

Synonyms:
IMA1981-060
Other Languages:
German:Jarosewichit
Spanish:Jarosewichita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Jarosewichite

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

Internet Links for Jarosewichite

Search Engines:
  • Look for Jarosewichite on Google
  • Look for Jarosewichite images on Google
    • External Links:
  • Look for Jarosewichite on Webmineral
  • Look for Jarosewichite on Athena Mineralogy
  • Look for Jarosewichite on Wikipedia
  • Look for Jarosewichite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Jarosewichite in the Natural History Museum (London) online catalogue
  • Jarosewichite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • The Arkenstone - Fine Minerals
  • Top quality minerals from Kristalle of California
  • Lapis Mineral Magazin
  • Buy fine minerals and gemstones from Pala International
  • rare and unusual minerals mainly crystallized
  • Wilensky Fine Minerals
  • Wendel Minerals - Auktion & Shop
  • SpiriferMinerals.com - high quality specimens
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • High-end worldwide specimens & outstanding customer service
  • Find Jarosewichite on www.crystalclassics.co.uk
  • Fine Minerals from Dan Weinrich Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Jarosewichite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Dunn, et al: Jarosewichite and a related phase: basic manganese arsenates of the chlorophoenicite group from Franklin, NJ: Am. Min.:67:1043-1047 (1982); Dunn(1995):Pt5:669-670.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 29th Oct 2009 10:43:55