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Sinkankasite

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John and Marjory Sinkankas 1988
Formula:
Mn2+Al(PO3OH)2(OH) · 6H2O
Colour:
Colourless
Lustre:
Vitreous
Hardness:
4
Crystal System:
Triclinic
Name:
Named in 1984 by Donald R. Peacor, Pete J. Dunn, Willard Lincoln Roberts, Thomas J. Campbell, and William B. Simmons in honor of Captain John Sinkankas [May 15, 1915 Paterson, New Jersey, USA - May 17, 2002 San Diego, California, USA] innovator in faceting gem stones, author of mineralogical and gemological books, rare geoscience book dealer, mineral artist, mineral collector, and associate with Scripps Institute of Oceanography.
This page provides mineralogical data about Sinkankasite.


Classification of Sinkankasite

Approved
Approval Year:
1982
8.DB.20

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
42.7.1.4

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
19.12.8

19 : Phosphates
12 : Phosphates of Mn

Physical Properties of Sinkankasite

Vitreous
Transparency:
Transparent
Colour:
Colourless
Hardness:

Optical Data of Sinkankasite

Type:
Biaxial (-)
RI values:
nα = 1.511 nβ = 1.529 nγ = 1.544
2V:
Measured: 84° , Calculated: 82°
Max Birefringence:
δ = 0.033
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r < v

Chemical Properties of Sinkankasite

Formula:
Mn2+Al(PO3OH)2(OH) · 6H2O

Crystallography of Sinkankasite

Crystal System:
Triclinic
Cell Parameters:
a = 9.59 Å, b = 9.81 Å, c = 6.86 Å
α = 108.04°, β = 99.63°, γ = 98.87°
Ratio:
a:b:c = 0.978 : 1 : 0.699
Unit Cell V:
590.21 ų (Calculated from Unit Cell)

X-Ray Powder Diffraction

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of Sinkankasite

Synonyms of Sinkankasite

Other Language Names for Sinkankasite

Common Associates

Associated Minerals Based on Photo Data:
Hureaulite1 photo of Sinkankasite associated with Hureaulite on mindat.org.

Related Minerals - Nickel-Strunz Grouping

8.DB.05DiadochiteFe3+2(PO4)(SO4)(OH) · 5H2O
8.DB.05Pitticite(Fe, SO4, AsO4, H2O) ?
8.DB.05DestineziteFe3+2(PO4)(SO4)(OH) · 6H2O
8.DB.10VashegyiteAl11(PO4)9(OH)6 · 38H2O
8.DB.15SchooneriteZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2O
8.DB.25MitryaevaiteAl6(PO4)((P,S)O3(OH,O))2F2(OH)2 · 14.5H2O
8.DB.30SanjuaniteAl2(PO4)(SO4)(OH) · 9H2O
8.DB.35SarmientiteFe3+2(AsO4)(SO4)(OH) · 5H2O
8.DB.40BukovskýiteFe3+2(AsO4)(SO4)(OH) · 9H2O
8.DB.45ZýkaiteFe3+4(AsO4)3(SO4)(OH) · 15H2O
8.DB.50GiniiteFe2+Fe3+4(PO4)3(OH)5 · 2H2O
8.DB.55Sasaite(Al,Fe3+)14(PO4)11(SO4)(OH)7 · 83H2O
8.DB.60McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2O
8.DB.65GoldquarryiteCuCd2Al3(PO4)4F2(H2O,F)2 · 10H2O
8.DB.70BirchiteCd2Cu2(PO4)2(SO4) · 5H2O
8.DB.75BraithwaiteiteNaCu5(Ti4+Sb5+)(AsO4)4(HAsO4)2O2 · 8H2O

Related Minerals - Hey's Chemical Index of Minerals Grouping

19.12.1MetaswitzeriteMn3(PO4)2 · 4H2O
19.12.2BermaniteMn2+Mn3+2(PO4)2(OH)2 · 4H2O
19.12.3NatrophiliteNaMn2+PO4
19.12.4SidorenkiteNa3Mn2+(CO3)(PO4)
19.12.5Niahite(NH4)(Mn2+,Mg)(PO4) · H2O
19.12.6RobertsiteCa2Mn3+3(PO4)3O2 · 3H2O
19.12.7PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2O
19.12.9MangangordoniteMn2+Al2(PO4)2(OH)2 · 8H2O
19.12.10Heterosite(Fe3+,Mn3+)PO4
19.12.11Purpurite(Mn3+,Fe3+)PO4
19.12.12Wolfeite(Fe2+,Mn2+)2(PO4)(OH)
19.12.13Triploidite(Mn2+,Fe2+)2(PO4)(OH)
19.12.14LipscombiteFe2+Fe3+2(PO4)2(OH)2
19.12.15FrondeliteMn2+Fe3+4(PO4)3(OH)5
19.12.16RockbridgeiteFe2+Fe3+4(PO4)3(OH)5
19.12.17Kryzhanovskite(Fe3+,Mn2+)3(PO4)2(OH,H2O)3
19.12.18LandesiteMn2+3-xFe3+x(PO4)2(OH)x · (3-x)H2O
19.12.19Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
19.12.20Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
19.12.21EarlshannoniteMn2+Fe3+2(PO4)2(OH)2 · 4H2O
19.12.22Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
19.12.23Switzerite(Mn,Fe)3(PO4)2 · 7H2O
19.12.24LaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2O
19.12.25PseudolaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2O
19.12.26StrunziteMn2+Fe3+2(PO4)2(OH)2 · 6H2O
19.12.27StewartiteMn2+Fe3+2(PO4)2(OH)2 · 8H2O
19.12.28Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
19.12.29Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
19.12.30Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36
19.12.31JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
19.12.32WicksiteNaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O
19.12.33Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2
19.12.34Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2
19.12.35Ludlamite(Fe,Mn,Mg)3(PO4)2 · 4H2O
19.12.36GraftoniteFe2+Fe2+2(PO4)2
19.12.37WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2O
19.12.38FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
19.12.39BeusiteMn2+Mn2+2 (PO4)2
19.12.40MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2O
19.12.41Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O
19.12.42Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O
19.12.43Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O
19.12.44KeckiteCaMn2+Fe3+2Fe3+2(PO4)4(OH)3(H2O)7
19.12.45StanfielditeCa4Mg5(PO4)6
19.12.46Laubmannite(Fe2+,Mn2+,Ca)3Fe3+6(PO4)4(OH)12
19.12.47ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2O
19.12.48HagendorfiteNaCaMn2+Fe2+2(PO4)3
19.12.49Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3
19.12.50VaruliteNaCaMn2+Mn2+2(PO4)3
19.12.51GriphiteNa4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8
19.12.52Attakolite(Ca,Sr)Mn(Al,Fe)4(HPO4,PO4)3(SiO4,PO4)(OH)4
19.12.53Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2
19.12.54Lun'okite(Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O
19.12.55EosphoriteMn2+Al(PO4)(OH)2 · H2O
19.12.56Ernstite(Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2O
19.12.57ChildreniteFe2+Al(PO4)(OH)2 · H2O
19.12.58BobfergusoniteNa2Mn5FeAl(PO4)6
19.12.59QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3
19.12.60Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
19.12.61Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
19.12.62Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
19.12.63Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O
19.12.64ZanazziiteCa2Mg5Be4(PO4)6(OH)4 · 6H2O
19.12.65Samuelsonite(Ca,Ba)Ca8Fe2+2Mn2+2Al2(PO4)10(OH)2

Related Minerals - Dana Grouping (8th Ed.)

42.7.1.1ChildreniteFe2+Al(PO4)(OH)2 · H2O
42.7.1.2EosphoriteMn2+Al(PO4)(OH)2 · H2O
42.7.1.3Ernstite(Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2O

Other Information

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 Sinkankasite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Peacor, D.R., P.J. Dunn, W.L. Roberts, T.J. Campbell, and W.B. Simmons
(1984): Sinkankasite, a new phosphate from the Barker pegmatite, South Dakota. Am. Mineral., 69, 380–382.
Burns, P.C. and F.C. Hawthorne (1995): The crystal structure of sinkankasite, a
complex heteropolyhedral sheet mineral. Am. Mineral., 80, 620–627.

Internet Links for Sinkankasite

mindat.org URL:
https://www.mindat.org/min-3674.html
Please feel free to link to this page.

Localities for Sinkankasite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Indigirka River Basin
        • Ust'-Nera
Gamyanin, G.N., Zayakina, N.V., Galenchikova, L.T. (2013): Arangasite, Al2(PO4)(SO4)F·7.5Н2O, a new mineral from Alaskitovoye deposit (Eastern Yakutia, Russia)". Zapiski RMO, 142(5), 21-30. ; Gamyanin, G. N., Zayakina, N. V., & Galenchikova, L. T. (2014). Arangasite, Al2 (PO4)(SO4) F· 7.5 H2O, a new mineral from the Alyaskitovy deposit, Eastern Yakutia, Russia. Geology of Ore Deposits, 56(7), 560-566.
USA
 
  • New Hampshire
    • Grafton Co.
      • Groton
American Mineralogist (1984): 69: 380-382.
  • South Dakota
    • Pennington Co.
      • Keystone District
        • Keystone
American Mineralogist (1984): 69: 380-382.
Mineral and/or Locality  
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