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Redingtonite

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Formula:
(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2O
Colour:
White, pink, purple
Lustre:
Silky
Hardness:
2
Specific Gravity:
1.761
Crystal System:
Monoclinic
Name:
Named after its discovery locality, the Redington mercury mine, Knoxville, Napa Co., California, USA.
Hide all sections | Show all sections

Classification of RedingtoniteHide

Approved, 'Grandfathered' (first described prior to 1959), Questionable
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
29.7.3.6

29 : HYDRATED ACID AND NORMAL SULFATES
7 : AB2(XO4)4·H2O
25.8.7

25 : Sulphates
8 : Sulphates of Sb, V, Cr and U

Physical Properties of RedingtoniteHide

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

Chemical Properties of RedingtoniteHide

Formula:
(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2O
IMA Formula:
Fe2+Cr2(SO4)4 · 22H2O

Crystallography of RedingtoniteHide

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

Type Occurrence of RedingtoniteHide

Other Language Names for RedingtoniteHide

Relationship of Redingtonite to other SpeciesHide

Other Members of this group:
ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m : P21/b
Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 : P2
PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b
Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2OMon.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Botryogen1 photo of Redingtonite associated with Botryogen on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.CB.05Dwornikite(Ni,Fe)SO4 · H2OMon. 2/m : B2/b
7.CB.05GunningiteZnSO4 · H2OMon. 2/m : B2/b
7.CB.05KieseriteMgSO4 · H2OMon. 2/m
7.CB.05Poitevinite(Cu,Fe,Zn)SO4 · H2OTric.
7.CB.05SzmikiteMnSO4 · H2OMon.
7.CB.05SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b
7.CB.05CobaltkieseriteCoSO4 · H2OMon. 2/m : B2/b
7.CB.07SanderiteMgSO4 · 2H2OOrth. 2 2 2 : P21 21 21
7.CB.10BonattiteCuSO4 · 3H2OMon.
7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2OMon. 2/m
7.CB.15Boyleite(Zn,Mg)SO4 · 4H2OMon. 2/m : P21/b
7.CB.15Ilesite(Mn,Zn,Fe)SO4 · 4H2OMon. 2/m
7.CB.15RozeniteFeSO4 · 4H2OMon. 2/m : P21/b
7.CB.15StarkeyiteMgSO4 · 4H2OMon. 2/m : P21/b
7.CB.15DrobeciteCdSO4 · 4H2OMon. 2/m : P21/m
7.CB.15CranswickiteMgSO4 · 4H2OMon. m : Bb
7.CB.20ChalcanthiteCuSO4 · 5H2OTric. 1 : P1
7.CB.20JôkokuiteMnSO4 · 5H2OTric.
7.CB.20PentahydriteMgSO4 · 5H2OTric.
7.CB.20SiderotilFeSO4 · 5H2OTric.
7.CB.25Bianchite(Zn,Fe)SO4 · 6H2OMon. 2/m : P2/m
7.CB.25Chvaleticeite(Mn,Mg)SO4 · 6H2OMon. 2/m : B2/b
7.CB.25FerrohexahydriteFeSO4 · 6H2OMon. 2/m : B2/b
7.CB.25HexahydriteMgSO4 · 6H2OMon. 2/m : P2/m
7.CB.25Moorhouseite(Co,Ni,Mn)SO4 · 6H2OMon.
7.CB.25Nickelhexahydrite(Ni,Mg,Fe)SO4 · 6H2OMon.
7.CB.30RetgersiteNiSO4 · 6H2OTet. 4 2 2 : P41 21 2
7.CB.35BieberiteCoSO4 · 7H2OMon. 2/m : P2/m
7.CB.35BoothiteCuSO4 · 7H2OMon.
7.CB.35MallarditeMnSO4 · 7H2OMon. 2/m : P2/m
7.CB.35MelanteriteFeSO4 · 7H2OMon. 2/m : P21/b
7.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2OMon.
7.CB.35Alpersite(Mg,Cu)[SO4] · 7H2OMon. 2/m : P21/b
7.CB.40EpsomiteMgSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40GoslariteZnSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40MorenositeNiSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.45AlunogenAl2(SO4)3 · 17H2OTric. 1
7.CB.45Meta-alunogenAl2(SO4)3 · 12H2O
7.CB.50AluminocoquimbiteFeAl(SO4)3 · 9H2OTrig. 3m (3 2/m) : P3 1c
7.CB.55CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5Trig. 3m (3 2/m) : P3 1c
7.CB.55ParacoquimbiteFe2(SO4)3 · 9H2OTrig. 3 : R3
7.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.CB.60KorneliteFe2(SO4)3 · 7H2OMon. 2/m : P21/m
7.CB.65QuenstedtiteFe2(SO4)3 · 11H2OTric. 1 : P1
7.CB.70LauseniteFe2(SO4)3·5H2OMon. 2/m : P21/m
7.CB.75LishizheniteZnFe2(SO4)4 · 14H2OTric. 1 : P1
7.CB.75RömeriteFe2+Fe3+2(SO4)4 · 14H2OTric. 1 : P1
7.CB.80RansomiteCuFe2(SO4)4 · 6H2OMon. 2/m : P21/b
7.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
7.CB.85BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 : P2
7.CB.85PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2OMon.
7.CB.90MeridianiiteMgSO4 · 11H2OTric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide

29.7.3.1PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b
29.7.3.2HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 : P2
29.7.3.3ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
29.7.3.4Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
29.7.3.5BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m : P21/b
29.7.3.7Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.8.1KlebelsbergiteSb4O4(SO4)(OH)2Orth. mm2
25.8.2CoquanditeSb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)Tric. 1 : P1
25.8.3PeretaiteCa(SbO)4(SO4)2(OH)2 · 2H2OMon. 2/m : B2/b
25.8.4CannoniteBi2(SO4)O(OH)2Mon. 2/m : P21/b
25.8.5Minasragrite(V4+O)(SO4) · 5H2OMon. 2/m
25.8.6Stanleyite(V4+O)(SO4) · 6H2OOrth.
25.8.8Metauranopilite(UO2)6(SO4)(OH)10 · 5H2O
25.8.9Uranopilite(UO2)6(SO4)O2(OH)6 · 14H2OMon.
25.8.10NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2OMon. 2/m : P21/m
25.8.11ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2OMon. 2 : B2
25.8.12JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2OTric. 1
25.8.13MagnesiozippeiteMg(UO2)2(SO4)O2 · 3.5H2OMon. 2/m : B2/m
25.8.14ZinczippeiteZn(UO2)2(SO4)O2 · 3.5H2OMon. 2/m : B2/m

Other InformationHide

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

References for RedingtoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 RedingtoniteHide

Localities for RedingtoniteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
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 (TL)
 
  • 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.
Mineral and/or Locality  
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