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Dickinsonite-(KMnNa)

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John William Dickinson
Formula:
{KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{Al}(PO4)12(OH)2
System:
Monoclinic
Colour:
Green shades to dark ...
Hardness:
3½ - 4
Name:
After the Reverend John William Dickinson (1835-1899) of Redding, Connecticut, USA, who collected minerals of the area and drew attention to them.
Arrojadite Group. Arrojadite-(KFe)-Dickinsonite-(KMnNa) Series.

Note: Mücke & Keck describe "Dickinsonite-(NaMn)" and "Dickinsonite-(KMn)" from Hagendorf-Süd, on the basis of EPMA data.

Classification of Dickinsonite-(KMnNa)

Approved 2005
Explanation of status:
Redefinition after the new arrojadite nomenclature (CNMMN 05-D, October 2005)
8.BF.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
F : With medium-sized and large cations, (OH, etc.):RO4< 0.5:1
41.7.2.2

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)7(XO4)4Zq
19.12.33

19 : Phosphates
12 : Phosphates of Mn
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Type Occurrence of Dickinsonite-(KMnNa)

Year of Discovery:
1878
Geological Setting of Type Material:
Pegmatite

Occurrences of Dickinsonite-(KMnNa)

Geological Setting:
Pegmatites

Physical Properties of Dickinsonite-(KMnNa)

Vitreous, Pearly
Diaphaneity (Transparency):
Transparent, Translucent
Comment:
Lustre somewhat pearly on the cleavage.
Colour:
Green shades to dark green, yellowish green, brownish green; green in transmitted light.
Streak:
Nearly white
Hardness (Mohs):
3½ - 4
Tenacity:
Very brittle
Cleavage:
Perfect
On {001}, perfect (almost micaceous).
Fracture:
Irregular/Uneven
Density:
3.38 - 3.41 g/cm3 (Measured)    3.42 g/cm3 (Calculated)
Comment:
Measured end values on Branchville (3.41) and Poland, Maine (3.38) materials.

Crystallography of Dickinsonite-(KMnNa)

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 24.94Å, b = 10.13Å, c = 16.72Å
β = 105.6°
Ratio:
a:b:c = 2.462 : 1 : 1.651
Unit Cell Volume:
V 4,068.57 ų (Calculated from Unit Cell)
Morphology:
Crystals tabular {001}. Commonly pseudo-rhombohedral in habit. Triangular striations on {001}. Frequently foliated to micaceous; curved lamellar; radiated; stellated; and as disseminated scales.

Optical Data of Dickinsonite-(KMnNa)

Type:
Biaxial (+)
RI values:
nα = 1.648 - 1.658 nβ = 1.655 - 1.662 nγ = 1.662 - 1.671
2V:
Measured: 80° to 90°, Calculated: 68° to 88°
Max Birefringence:
δ = 0.014
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Pleochroism:
Visible
Comments:
X = b = Light olive-green
Y = ^c ~ +15° = Lighter olive-green
Z = Very light yellowish green

Chemical Properties of Dickinsonite-(KMnNa)

Formula:
{KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{Al}(PO4)12(OH)2
Essential elements:
All elements listed in formula:

Relationship of Dickinsonite-(KMnNa) to other Species

Series:
Forms a series with Arrojadite-(KFe) (see here)
Other Members of Group:
Arrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(BaNa)BaNa3(NaCa)Fe132+Al(PO4)11(PO3OH)(OH)
Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(KFeNa){KNa}{Fe2+◻}{Ca}{Na3}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(PbFe){Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(SrFe){Sr◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Ferri-arrojadite-(BaNa){Ba◻}{Na2}{Ca}{Na2◻}{Fe132+}{Fe3+}(PO4)11(HPO4)(OH)2
Fluorarrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
Fluorarrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
Fluorarrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
Common Associates:
8.BF.05Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Arrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Arrojadite-(SrFe){Sr◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Arrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Arrojadite-(PbFe){Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Fluorarrojadite-(BaFe){Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
8.BF.05Arrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
8.BF.05Arrojadite-(BaNa)BaNa3(NaCa)Fe132+Al(PO4)11(PO3OH)(OH)
8.BF.05Fluorarrojadite-(KNa){KNa}{Na2}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
8.BF.05Fluorarrojadite-(NaFe){Na2}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
8.BF.10Samuelsonite(Ca,Ba)Ca8Fe22+Mn22+Al2(PO4)10(OH)2
8.BF.15GriphiteNa4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8
8.BF.20NabiasiteBaMn92+(VO4,AsO4)6(OH)2
19.12.1MetaswitzeriteMn3(PO4)2 · 4H2O
19.12.2BermaniteMn2+Mn23+(PO4)2(OH)2 · 4H2O
19.12.3NatrophiliteNaMn2+PO4
19.12.4SidorenkiteNa3Mn2+(CO3)(PO4)
19.12.5Niahite(NH4)(Mn2+,Mg)(PO4) · H2O
19.12.6RobertsiteCa3Mn43+(PO4)3O2 · 3H2O
19.12.7PararobertsiteCa2Mn33+(PO4)3O2 · 3H2O
19.12.8SinkankasiteMn2+Al(PO3OH)2(OH) · 6H2O
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+Fe23+(PO4)2(OH)2
19.12.15FrondeliteMn2+Fe43+(PO4)3(OH)5
19.12.16RockbridgeiteFe2+Fe43+(PO4)3(OH)5
19.12.17Kryzhanovskite(Fe3+,Mn2+)3(PO4)2(OH,H2O)3
19.12.18LandesiteMn2+3-xFex3+(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+Fe23+(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+Fe23+(PO4)2(OH)2 · 8H2O
19.12.25PseudolaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
19.12.26StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
19.12.27StewartiteMn2+Fe23+(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
19.12.34Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2
19.12.35Ludlamite(Fe,Mn,Mg)3(PO4)2 · 4H2O
19.12.36Graftonite(Fe2+,Mn2+,Ca)3(PO4)2
19.12.37WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2O
19.12.38FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
19.12.39Beusite(Mn2+,Fe2+,Ca,Mg)3(PO4)2
19.12.40MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2O
19.12.41Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe22+}{Fe23+}(PO4)4(OH)2 · 8H2O
19.12.42Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn22+}{Fe23+}(PO4)4(OH)2 · 8H2O
19.12.43Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe23+}(PO4)4(OH)2 · 8H2O
19.12.44KeckiteCaMn2+Fe23+Fe23+(PO4)4(OH)3(H2O)7
19.12.45StanfielditeCa7Ca2Mg9(PO4)12
19.12.46Laubmannite(Fe2+,Mn2+,Ca)3Fe63+(PO4)4(OH)12
19.12.47ZodaciteCa4Mn2+Fe43+(PO4)6(OH)4 · 12H2O
19.12.48HagendorfiteNaCaMn2+Fe22+(PO4)3
19.12.49Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3
19.12.50VaruliteNaCaMn2+Mn22+(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◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
19.12.54Lun'okite(Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O
19.12.55Eosphorite(Mn2+,Fe2+)Al(PO4)(OH)2 · H2O
19.12.56Ernstite(Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2O
19.12.57Childrenite(Fe2+,Mn2+)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)Ca8Fe22+Mn22+Al2(PO4)10(OH)2

Other Names for Dickinsonite-(KMnNa)

Name in Other Languages:

Other Information

Other Information:
Soluble in acids.
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 Dickinsonite-(KMnNa)

Reference List:
Brush and Dana (1878) American Journal of Science: 16: 114 (as Dickinsonite).

Brush and Dana (1890) American Journal of Science: 39: 213.

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 68.

Berman and Gonyer (1930) American Mineralogist: 15: 375.

Wolfe (1941) American Mineralogist: 26: 339.

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.: 717-719 (as Dickinsonite).

American Mineralogist (1981): 66: 1034-1049.

Cámara, F., Oberti, R., Chopin, C., Medenbach, O. (2006): The arrojadite enigma: I. A new formula and a new model for the arrojadite structure. American Mineralogist, 91, 1249-1259

Chopin, C., Oberti, R., Cámara, F. (2006): The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist, 91, 1260-1270.

Mücke, A. & Keck, E. (2011): Karbonate aus dem Pegmatit von Hagendorf-Süd/Opf.: Zusammensetzung, Verbreitung und begleitende Phosphat-Mineralien (Apatit, Hagendorfit und Eosphorit-Gruppe) - darunter einige Neufunde (Triplit, Mineralien der Arrojadit-Dickinsonit Reihe, Goyazit und Variscit). Aufschluss 62, 87-117.

Internet Links for Dickinsonite-(KMnNa)

Localities for Dickinsonite-(KMnNa)

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.
Argentina
 
  • Salta
    • Nevados de Palermo
      • El Quemado District
Galliski, M. A., & Hawthorne, F. C. (2002). Refinement of the crystal structure of ushkovite from Nevados de Palermo, Republica Argentina. The Canadian Mineralogist, 40(3), 929-937.
Australia
 
  • South Australia
    • Olary Province
      • Boolcoomatta Reserve (Boolcoomata Station; Boolcoomatta)
Record of Sth.Aust. mines summary Olary SI5402 card 235
Canada
 
  • Manitoba
    • Cross Lake
      • North Group
        • (Gottcha Claim)
ERCIT, S.T., TAIT, K.T., COOPER, M.A. ABDU, Y., BALL, N.A., ANDERSON, A.J., ČERNÝ, P. & HAWTHORNE, F.C. (2010) Manitobaite, Na16Mn2+25Al8(PO4)30, a new phosphate mineral species from Cross Lake, Manitoba, Canada. Canadian Mineralogist 48, 1455-1463.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Plzeň Region
      • Poběžovice (Ronsperg; Ronsberg; Ronsperk)
        • Otov
Masau, M., Staněk, J., Černý, P., Chapman, R. (2000). Metasomatic wolfeite and associated phosphates from the Otov I granitic pegmatite, western Bohemia. J. Czech Geol. Soc. 45, 159-173.
Namibia
 
  • Erongo Region
    • Karibib District
      • Okongava Ost Farm 72
P. Keller et al., NJMA 183, 197-201 (2007)
USA
 
  • Arizona
    • Yavapai Co.
AmMin 67: 97-113 (1982)
  • Connecticut
    • Fairfield Co.
Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State, p.278
Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
      • Redding (Reading)
        • Branchville
Brush and Dana (1878); American Mineralogist (1946): 31: 329-345; 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: 671, 718, 855.; Rocks & Minerals (1995) 70:396-409
    • Middlesex Co.
      • Portland
        • Collins Hill
          • Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries)
Schairer, J. F. (1926): Lithiophilite and Other Rare Phosphates from Portland, Connecticut. American Mineralogist: 11(4): 101-104.; Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.
  • Maine
    • Androscoggin Co.
      • Auburn
        • East Mount Apatite District
No reference listed
"Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
        • West Mount Apatite District
No reference listed
No reference listed
No reference listed
      • Poland
King, V. T. and Foord, E. E., 1994, Mineralogy of Maine, Descriptive Mineralogy, volume 1, Maine Geological Survey, Augusta, Maine, USA, pp. 418 + 88 plates.
    • Oxford Co.
      • Greenwood
"Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
        • Uncle Tom Mountain
No reference listed
      • Hebron
Van King
      • Newry
King, V. T., 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, ... Maine, Mineral News, v. 22(6): p. 1-3.
      • Rumford
Guidebook 1 to Mineral Collecting in the Maine Pegmatite Belt
  • New Hampshire
    • Cheshire Co.
      • Alstead
Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
    • Grafton Co.
      • Alexandria
Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
      • Groton
Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Morrill, 1960. NH Mines and Minerals Localities, 2nd ed. ; Am. Min. 50 (1965), 713-717
    • Sullivan Co.
      • Newport
Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
  • North Carolina
    • Gaston Co.
      • Bessemer City
No reference listed
  • South Dakota
    • Pennington Co.
      • Keystone District
        • Keystone
Seaman, 1976. Pegmatite Minerals of the World
Mineral and/or Locality  
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