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Redingtonite

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Formula:
(Fe
2+
 
,Mg,Ni)(Cr,Al)
 
2
(SO
 
4
)
 
4
·22H
 
2
O
System:MonoclinicColour:White, pink, purple
Hardness:2
Member of:Halotrichite Group
Name:Named after its discovery locality, the Redington mercury mine, Knoxville, Napa Co., California, USA.

Classification of Redingtonite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:6/C.12-50
Nickel-Strunz 10th (pending) edition ID:7.CB.85

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
Dana 8th edition ID:29.7.3.6

29 : HYDRATED ACID AND NORMAL SULFATES
7 : AB2(XO4)4·H2O
Hey's CIM Ref.:25.8.7

25 : Sulphates
8 : Sulphates of Sb, V, Cr and U
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Type Occurrence of Redingtonite

Type Locality:Redington Mine (Boston Mine; Knoxville Mine; Excellsior Mine), Knoxville, Knoxville District, Napa Co., California, USA
Year of Discovery:1888

Physical Properties of Redingtonite

Lustre:Silky
Colour:White, pink, purple
Comment:The purple color occurs on fractures across the fiber length.
Streak:White
Hardness (Mohs):2
Density (measured):1.761 g/cm3

Crystallography of Redingtonite

Crystal System:Monoclinic
Morphology:Massive with a fine parallel-fibrous structure.

Chemical Properties of Redingtonite

Formula:
(Fe
2+
 
,Mg,Ni)(Cr,Al)
 
2
(SO
 
4
)
 
4
·22H
 
2
O
Simplified for copy/paste:(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2O
Essential elements:Cr, Fe, H, O, S
All elements listed in formula:Al, Cr, Fe, H, Mg, Ni, O, S

Relationship of Redingtonite to other Species

Member of:Halotrichite Group
Other Members of Group:

- +
Apjohnite
Mn
2+
 
Al
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
Bílinite
Fe
2+
 
Fe
3+
2
(SO
 
4
)
 
4
· 22H
 
2
O
Dietrichite
(Zn,Fe
2+
 
,Mn
2+
 
)Al
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
Halotrichite
FeAl
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
Pickeringite
MgAl
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
Wupatkiite
(Co,Mg,Ni)Al
 
2
(SO
 
4
)
 
4
·22H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
7.CB.05Dwornikite
(Ni,Fe)SO
 
4
· H
 
2
O
7.CB.05Gunningite
ZnSO
 
4
· H
 
2
O
7.CB.05Kieserite
MgSO
 
4
· H
 
2
O
7.CB.05Poitevinite
(Cu,Fe,Zn)SO
 
4
· H
 
2
O
7.CB.05Szmikite
MnSO
 
4
· H
 
2
O
7.CB.05Szomolnokite
FeSO
 
4
· H
 
2
O
7.CB.05Cobaltkieserite
CoSO
 
4
· H
 
2
O
7.CB.07Sanderite
MgSO
 
4
· 2H
 
2
O
7.CB.10Bonattite
CuSO
 
4
· 3H
 
2
O
7.CB.15Aplowite
(Co,Mn,Ni)SO
 
4
· 4H
 
2
O
7.CB.15Boyleite
(Zn,Mg)SO
 
4
· 4H
 
2
O
7.CB.15Ilesite
(Mn,Zn,Fe)SO
 
4
· 4H
 
2
O
7.CB.15Rozenite
FeSO
 
4
· 4H
 
2
O
7.CB.15Starkeyite
MgSO
 
4
· 4H
 
2
O
7.CB.15Drobecite
CdSO
 
4
· 4H
 
2
O
7.CB.15Cranswickite
MgSO
 
4
· 4H
 
2
O
7.CB.20Chalcanthite
CuSO
 
4
· 5H
 
2
O
7.CB.20Jôkokuite
MnSO
 
4
· 5H
 
2
O
7.CB.20Pentahydrite
MgSO
 
4
· 5H
 
2
O
7.CB.20Siderotil
FeSO
 
4
· 5H
 
2
O
7.CB.25Bianchite
(Zn,Fe)SO
 
4
· 6H
 
2
O
7.CB.25Chvaleticeite
(Mn,Mg)SO
 
4
· 6H
 
2
O
7.CB.25Ferrohexahydrite
FeSO
 
4
· 6H
 
2
O
7.CB.25Hexahydrite
MgSO
 
4
· 6H
 
2
O
7.CB.25Moorhouseite
(Co,Ni,Mn)SO
 
4
· 6H
 
2
O
7.CB.25Nickelhexahydrite
(Ni,Mg,Fe)SO
 
4
· 6H
 
2
O
7.CB.30Retgersite
NiSO
 
4
· 6H
 
2
O
7.CB.35Bieberite
CoSO
 
4
· 7H
 
2
O
7.CB.35Boothite
CuSO
 
4
· 7H
 
2
O
7.CB.35Mallardite
MnSO
 
4
· 7H
 
2
O
7.CB.35Melanterite
FeSO
 
4
· 7H
 
2
O
7.CB.35Zincmelanterite
(Zn,Cu,Fe)SO
 
4
· 7H
 
2
O
7.CB.35Alpersite
(Mg,Cu)[SO
 
4
] · 7H
 
2
O
7.CB.40Epsomite
MgSO
 
4
· 7H
 
2
O
7.CB.40Goslarite
ZnSO
 
4
· 7H
 
2
O
7.CB.40Morenosite
NiSO
 
4
· 7H
 
2
O
7.CB.45Alunogen
Al
 
2
(SO
 
4
)
 
3
· 17H
 
2
O
7.CB.45Meta-alunogen
Al
 
2
(SO
 
4
)
 
3
· 12H
 
2
O
7.CB.50Aluminocoquimbite
FeAl(SO
 
4
)
 
3
· 9H
 
2
O
7.CB.55Coquimbite
Fe
 
2-x
Al
 
x
(SO
 
4
)
 
3
· 9H
 
2
O, x ~0.5
7.CB.55Paracoquimbite
Fe
 
2
(SO
 
4
)
 
3
· 9H
 
2
O
7.CB.55Rhomboclase
(H
 
5
O
 
2
)Fe
3+
 
(SO
 
4
)
 
2
· 2H
 
2
O
7.CB.60Kornelite
Fe
 
2
(SO
 
4
)
 
3
· 7H
 
2
O
7.CB.65Quenstedtite
Fe
 
2
(SO
 
4
)
 
3
· 10H
 
2
O
7.CB.70Lausenite
Fe
 
2
(SO
 
4
)
 
3
·6H
 
2
O
7.CB.75Lishizhenite
ZnFe
 
2
(SO
 
4
)
 
4
· 14H
 
2
O
7.CB.75Römerite
Fe
2+
 
Fe
3+
2
(SO
 
4
)
 
4
· 14H
 
2
O
7.CB.80Ransomite
CuFe
 
2
(SO
 
4
)
 
4
· 6H
 
2
O
7.CB.85Apjohnite
Mn
2+
 
Al
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Bílinite
Fe
2+
 
Fe
3+
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Dietrichite
(Zn,Fe
2+
 
,Mn
2+
 
)Al
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Halotrichite
FeAl
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Pickeringite
MgAl
 
2
(SO
 
4
)
 
4
· 22H
 
2
O
7.CB.85Wupatkiite
(Co,Mg,Ni)Al
 
2
(SO
 
4
)
 
4
·22H
 
2
O
7.CB.90Meridianiite
MgSO
 
4
· 11H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
25.8.1Klebelsbergite
(SbO)
 
4
(SO
 
4
)(OH)
 
2
25.8.2Coquandite
(SbO)
 
6
(SO
 
4
)O
 
2
· H
 
2
O
25.8.3Peretaite
Ca(SbO)
 
4
(SO
 
4
)
 
2
(OH)
 
2
· 2H
 
2
O
25.8.4Cannonite
Bi
 
2
(SO
 
4
)O(OH)
 
2
25.8.5Minasragrite
(V
4+
 
O)(SO
 
4
) · 5H
 
2
O
25.8.6Stanleyite
(V
4+
 
O)(SO
 
4
) · 6H
 
2
O
25.8.8Metauranopilite
(UO
 
2
)
 
6
(SO
 
4
)(OH)
 
10
· 5H
 
2
O
25.8.9Uranopilite
(UO
 
2
)
 
6
(SO
 
4
)O
 
2
(OH)
 
6
· 14H
 
2
O
25.8.10Natrozippeite
Na
 
5
(UO
 
2
)
 
8
(SO
 
4
)
 
4
O
 
5
(OH)
 
3
· 12H
 
2
O
25.8.11Zippeite
K
 
3
(UO
 
2
)
 
4
(SO
 
4
)
 
2
O
 
3
(OH) · 3H
 
2
O
25.8.12Johannite
Cu(UO
 
2
)
 
2
(SO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
25.8.13Magnesiozippeite
Mg(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O
25.8.14Zinczippeite
Zn(UO
 
2
)
 
2
(SO
 
4
)O
 
2
· 3.5H
 
2
O

Other Names for Redingtonite

Other Languages:
German:Redingtonit
Spanish:Redingtonita

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 Redingtonite

Reference List:

- +
Becker (1888) USGS Monograph 13: 279.

Melville and Lindgren (1890) USGS Bull. 61: 23.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 529.

Mineralogical Record (1971): 2: 152.

Internet Links for Redingtonite

Search Engines:
  • Look for Redingtonite on Google
  • Look for Redingtonite images on Google
  • External Links:
  • Redingtonite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Top quality minerals from Kristalle of California
  • rare and unusual minerals mainly crystallized
  • Redingtonite specimens for sale - minfind.com
  • Buy RARE Minerals from Rocks of Africa
  • Buy fine minerals and gemstones from Pala International
  • Fine Minerals from Weinrich Minerals, Inc.
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy rare minerals from Excalibur Minerals
  • Find Redingtonite on www.crystalclassics.co.uk
  • Buy from Dave Bunk Minerals
  • Wilensky Fine Minerals
  • Fine minerals from bisbeeborn.com
  • Localities for Redingtonite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (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.
    Australia
     
    • South Australia
      • Murray Basin
        • Murray Riverlands
    Rob Fitzpatrick, Paul Shand, Mark Raven and Stuart McClure, 2010, Occurrence and environmental significance of sideronatrite and other mineral precipitates in Acid Sulfate Soils. 19th World Congress of Soil Science, Soil Solutions for a Changing World
    USA
     
    • California
      • Napa Co.
        • Knoxville District
          • Knoxville
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 529; Mineralogical Record (1971): 2: 152; Becker, George F. (1888b), Geology of the quicksilver deposits of the Pacific slope: USGS Monograph 13, atlas: 486; Melville, William Harlow & Waldemar Lindgren (1890), Contributions to the mineralogy of the Pacific coast: USGS Bulletin 61, 40pp.: 23; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 264.
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