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Fillowite

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Abijah N. Fillow
Formula:
{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36
System:
Trigonal
Colour:
Greenish yellow to ...
Lustre:
Sub-Vitreous, Resinous, Greasy
Hardness:
Member of:
Name:
Named by George J. Brush and Edward S. Dana in 1879 in honor of Abijah N. Fillow of Branchville [b. October 24, 1822 - November 10, 1895], Connecticut, USA, original owner and operator of the Branchville pegmatite and mine, as well as railroad station manager of Branchville Station, and who first collected the rare manganese phosphates that made the locality famous.

Classification of Fillowite

Approved, 'Grandfathered' (first described prior to 1959)
8.AC.50

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
Dana 7th ed.:
38.2.9.1
38.2.5.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
2 : (AB)5(XO4)3
19.12.30

19 : Phosphates
12 : Phosphates of Mn

Physical Properties of Fillowite

Sub-Vitreous, Resinous, Greasy
Diaphaneity (Transparency):
Transparent, Translucent
Comment:
Sub-resinous to greasy.
Colour:
Greenish yellow to yellow green, yellowish brown, reddish brown; colourless; colourless to yellow in transmitted light.
Streak:
White
Hardness (Mohs):
Tenacity:
Brittle
Cleavage:
Perfect
On {001}, nearly perfect.
Fracture:
Irregular/Uneven
Density:
3.43 g/cm3 (Measured)    3.42-3.54 g/cm3 (Calculated)
Comment:
Am Min 74:918 structure

Optical Data of Fillowite

Type:
Uniaxial (+)
RI values:
nω = 1.671 - 1.672 nε = 1.676
Birefringence:
0.005
Max Birefringence:
δ = 0.005
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v strong
Comments:
May be anomalously biaxial (+). 1.672, 1.672, 1.676. 2V = 30°

Chemical Properties of Fillowite

Formula:
{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36
IMA Formula:
Na2CaMn72+(PO4)6
Idealised Formula:
Na2Ca(Mn,Fe)7(PO4)6
Elements listed in formula:

Crystallography of Fillowite

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Space Group Setting:
R3
Cell Parameters:
a = 15.25 Å, c = 43.32 Å
Ratio:
a:c = 1 : 2.841
Unit Cell Volume:
V 8,724.87 ų (Calculated from Unit Cell)
Z:
18
Morphology:
Granular crystalline masses, rarely as tiny <<1 mm pseudo-cubic rhombohedra in intergrown columns (<< 1 mm).
Comment:
ICDD 18-516; Am Min 74:918 structure
X-Ray Powder Diffraction Data:
d-spacingIntensity
11.4 (40)
8.49 (20)
3.79 (40)
3.02 (70)
2.81 (100)
2.55 (60)
2.16 (20)
1.888 (40)
Comments:
ICDD 18-516

Type Occurrence of Fillowite

Geological Setting of Type Material:
Granite Pegmatite containing lithiophilite
Associated Minerals at Type Locality:

Relationship of Fillowite to other Species

Member of:
Other Members of Group:
Chladniite{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36
Galileiite{Fe2+}{Na8}{Fe42+Na4}{Fe432+}(PO4)36
JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36
XenophylliteNa4Fe72+(PO4)6
8.AC.WopmayiteCa6Na3□Mn(PO4)3(PO3OH)4
8.AC.05HowardevansiteNaCuFe2(VO4)3
8.AC.10Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
8.AC.10Arseniopleite(Ca,Na)NaMn2+(Mn2+,Mg,Fe2+)2(AsO4)3
8.AC.10Caryinite(Na,Pb)(Ca,Na)CaMn22+(AsO4)3
8.AC.10Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
8.AC.10HagendorfiteNaCaMn2+Fe22+(PO4)3
8.AC.10JohilleriteNa(Mg,Zn)3Cu(AsO4)3
8.AC.10Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3
8.AC.10NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3
8.AC.10VaruliteNaCaMn2+Mn22+(PO4)3
8.AC.10FerrohagendorfiteNaCaFe2+Fe22+(PO4)3
8.AC.10BradaczekiteNaCu4(AsO4)3
8.AC.10YazganiteNaFe23+(Mg,Mn2+)(AsO4)3 · H2O
8.AC.10GroatiteNaCaMn2(PO4)(HPO4)2
8.AC.15BobfergusoniteNa2Mn5FeAl(PO4)6
8.AC.15Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3
8.AC.15QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3
8.AC.15Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3
8.AC.15Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3
8.AC.15Ferrorosemaryite◻NaFe2+Fe3+Al(PO4)3
8.AC.15Qingheiite-(Fe2+)Na2Fe2+MgAl(PO4)3
8.AC.18ManitobaiteNa16Mn2+ 25Al8(PO4)30
8.AC.20MarićiteNaFe2+(PO4)
8.AC.25Berzeliite(NaCa2)Mg2(AsO4)3
8.AC.25ManganberzeliiteNaCa2Mn22+(AsO4)3
8.AC.25Palenzonaite(Ca,Na)3CaMn22+(VO4)3
8.AC.25SchäferiteCa2NaMg2(VO4)3
8.AC.30BrianiteNa2CaMg(PO4)2
8.AC.35Vitusite-(Ce)Na3(Ce,La,Nd)(PO4)2
8.AC.40Olgite(Sr,Ba)(Na,Sr,REE)2Na(PO4)2
8.AC.40Bario-olgite(Ba,Sr)(Na,Sr,REE)2Na(PO4)2 ·
8.AC.45StrontiowhitlockiteSr9Mg(PO4)6(HPO4)
8.AC.45WhitlockiteCa9Mg(PO4)6(HPO4)
8.AC.45MerrilliteCa9NaMg(PO4)7
8.AC.45TuiteCa3(PO4)2
8.AC.45FerromerrilliteCa9NaFe2+(PO4)7
8.AC.45BobdownsiteCa9Mg(PO4)6(PO3F)
8.AC.50Chladniite{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36
8.AC.50JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
8.AC.50Galileiite{Fe2+}{Na8}{Fe42+Na4}{Fe432+}(PO4)36
8.AC.50Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36
8.AC.50XenophylliteNa4Fe72+(PO4)6
8.AC.55HarrisoniteCa(Fe2+,Mg)6(PO4)2(SiO4)2
8.AC.60KosnariteKZr2(PO4)3
8.AC.65Panethite(Na,Ca)2(Mg,Fe2+)2(PO4)2
8.AC.70StanfielditeCa4Mg5(PO4)6
8.AC.75RonneburgiteK2MnV4O12
8.AC.80Tillmannsite(Ag3Hg)(VO4,AsO4)
8.AC.85FilatoviteK(Al,Zn)2(As,Si)2O8
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
19.12.6RobertsiteCa2Mn33+(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
19.12.31JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
19.12.32WicksiteNaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O
19.12.33Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{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+Fe22+(PO4)2
19.12.37WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2O
19.12.38FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
19.12.39BeusiteMn2+Mn22+ (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
19.12.45StanfielditeCa4Mg5(PO4)6
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
19.12.55EosphoriteMn2+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)Ca8Fe22+Mn22+Al2(PO4)10(OH)2
38.2.9.2JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
38.2.9.3Chladniite{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36
38.2.9.4Galileiite{Fe2+}{Na8}{Fe42+Na4}{Fe432+}(PO4)36
38.2.9.5Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36
38.2.9.6XenophylliteNa4Fe72+(PO4)6

Other Names for Fillowite

Name in Other Languages:
German:Fillowit
Simplified Chinese:锰磷矿
Spanish:Fillowita

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 Fillowite

Reference List:
Brush and Dana (1879) American Journal of Science: 17: 363.

Brush and Dana (1879) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 3: 578.

Brush and Dana (1890) American Journal of Science: 39: 215 (Wells' analysis).

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 75.

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.: 719-720.

American Mineralogist (1965) 50:1647.

American Mineralogist (1981): 66: 827-842.

Internet Links for Fillowite

mindat.org URL:
https://www.mindat.org/min-1549.html
Please feel free to link to this page.

Localities for Fillowite

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.
Canada
 
  • Manitoba
    • Cross Lake
      • North Group
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; The Canadian Mineralogist Vol. 36,pp. 367-376 (1998)
  • Nova Scotia
    • Yarmouth Co.
Hughes, Steven G., "Internal Zonation and Mineralogy of the Brazil Lake Pegmatite", Unpublished B.Sc. Thesis, Saint Mary's University, Augist 1995.
China
 
  • Xinjiang Autonomous Region
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Qinghe Co. (Qinggil Co.; Chinggil Co.)
Ma Zhesheng, Shi Nicheng, and Ye Danian (2005): Science in China, Series D (Earth Sciences), 48(5), 635-646.
France
 
  • Occitanie
    • Pyrénées-Orientales
      • Albères massif
        • Argelès-sur-Mer
FONTAN, F. (1971) Pegmatites phospholithinifères des massifs d'Arize, d'Aston et des Albères. Thèse 3ème cycle Université P. Sabatier, Toulouse, p 87-99
BERBAIN. C, IOB. S, ROATTINO. T, RILEY. T, (2016). Phosphates des pegmatites du massif des Albères 2ème partie : zones minéralisées. Ed Association française de Microminéralogie,
Rwanda
 
  • Western Province
    • Gatumba District
Daltry, V.D.C. and O. von Knorring (1998) Type-Mineralogy of Rwanda with Particular Reference to the Buranga Pegmatite. Geologica Belgica 1:1-9
Can Mineral April 1998 v. 36 no. 2 p. 355-366
Jaroslav Hyrsl and Excalibur Mineral Co. specimens
Spain
 
  • Catalonia
    • Girona (Gerona)
      • Alt Empordà
        • Cadaqués
Bareche, E. (2005) "Els minerals de Catalunya. Segle XX" Ed. Museu Mollfulleda de Mineralogia - Grup Mineralògic Català, 269 p.
Uganda
 
  • Central Region
    • Masaka District
American Mineralogist, Volume 66, pages 827-842, 1981
USA
 
  • Arizona
    • Yavapai Co.
American Mineralogist (1982): 67: 97-113.
  • Connecticut
    • Fairfield Co.
      • 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: 720.; Rocks & Minerals (1995) 70:396-409
  • New Hampshire
    • Cheshire Co.
      • Sullivan
unverified Rob Lavinsky specimen
  • Wisconsin
    • Florence Co.
      • Fern
        • Pine River pegmatites
Falster, A. , W.B. Simmons & P.B. Moore (1988) Fillowite, Lithiophilite, Heterosite/Purpurite and Allvaudite--Varulite Group Minerals from a Pegmatite in Florence County, WI, Abst. 15th Rochester Mineralogical Symposium, Rocks and Minerals: 63(6) p. 455. Falster, A. , W.B. Simmons & P.B. Moore (1996) The mineralogy and geochemistry of the Animikie Red Ace pegmatite in Florence County, Wisconsin: Recent Research Developments in Mineralogy: 1: 7-67.
Richardson, P., A.U. Falster & W. B. Simmons (1996) A new locality for nigerite in Florence County, Wisconsin: Mineral News: July, 1996, page 4.
Mineral and/or Locality  
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