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Oxyphlogopite

A valid IMA mineral species
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02102220015862519987000.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
08981210014951697933668.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
01677350014951697935549.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
00470520015862514244334.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
04344530014947092529316.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
01677350014951697935549.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
02102220015862519987000.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
08981210014951697933668.jpg
Oxyphlogopite

Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
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About OxyphlogopiteHide

Formula:
K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Colour:
Dark brown to almost black
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.06
Crystal System:
Monoclinic
Name:
Named in 2010 by N. V. Chukanov, A. A. Mukhanova, R. K. Rastsvetaeva, D.I. Belakovskiy, S. Möckel, O. V. Karimova, S. N. Britvin, and S. V. Krivovichev for its chemical relationship to phlogopite.
It forms coarse dark brown to black vitreous prismatic (up to 1.5 mm) or platy (up to 4×4×0.2 mm) crystals in cavities of alkaline basalt.


Unique IdentifiersHide

Mindat ID:
39713
Long-form identifier:
mindat:1:1:39713:3
GUID
(UUID V4):
e973cea1-b6d8-4873-b4f0-27d0b6f447d0

IMA Classification of OxyphlogopiteHide

IMA status:
Approved
Approval year:
2009

Classification of OxyphlogopiteHide

Strunz-mindat (2024):
9.EC.20

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
OphlIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of OxyphlogopiteHide

Lustre:
Vitreous
Colour:
Dark brown to almost black
Streak:
Brown
Hardness:
3 on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
on {001}
Density:
3.06(1) g/cm3 (Measured)    3.086 g/cm3 (Calculated)

Optical Data of OxyphlogopiteHide

Type:
Biaxial (-)
RI values:
nα = 1.625(3) nβ = 1.668(1) nγ = 1.669(1)
2V:
Measured: 17°
Max Birefringence:
δ = 0.044
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v, strong
Pleochroism:
Visible
Comments:
Brown to dark brown

Chemistry of OxyphlogopiteHide

Mindat Formula:
K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
Elements listed:
Al, F, Fe, K, Mg, O, Si, Ti - search for minerals with similar chemistry
Common Impurities:
Fe,Na

Crystallography of OxyphlogopiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 5.3165(1) Å, b = 9.2000(2) Å, c = 10.0602(2) Å
β = 100.354(2)°
Ratio:
a:b:c = 0.578 : 1 : 1.094
Unit Cell V:
484.05 ų (Calculated from Unit Cell)
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.91 Å(32)
4.53 Å(11)
3.300 Å(100)
3.090 Å(12)
1.985 Å(21)
1.659 Å(12)
1.527 Å(16)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 2: Planetesimal differentiation and alteration4.566-4.550
6 : Secondary asteroid phases4.566-4.560
Stage 3a: Earth’s earliest Hadean crust>4.50
7 : Ultramafic igneous rocks
High-𝑇 alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
36 : Carbonatites, kimberlites, and related igneous rocks
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of OxyphlogopiteHide

Type Locality:
ⓘ Rothenberg Quarry, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
General Appearance of Type Material:
Imperfect prismatic and thin lamellar crystals.
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia: registration nos. 3884/1 (cotype) and 3884/2 (holotype).
Geological Setting of Type Material:
Oxyphlogopite is pneumatolitic in origin. It occurs as crystals lining the walls of cavities in cavernous alkali basalt and growing into the rock near the caverns.
Associated Minerals at Type Locality:
SanidineNephelineMagnetiteDiopsideAugite
Albite-Anorthite Series

Synonyms of OxyphlogopiteHide

Relationship of Oxyphlogopite to other SpeciesHide

Member of:
Biotite Group > Trioctahedral mica Group > Mica Group
Other Members of this group:
AnniteKFe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
EastoniteKMg2Al(Al2Si2O10)(OH)2Mon.
FluoranniteKFe2+3(Si3Al)O10F2Mon. 2/m : B2/m
FluorophlogopiteKMg3(Si3Al)O10F2Mon. 2/m : B2/m
FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2Mon. 2/m : B2/m
PhlogopiteKMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
SiderophylliteKFe2+2Al(Al2Si2O10)(OH)2Mon.
TetraferrianniteKFe2+3(Si3Fe3+)O10(OH)2Mon. 2/m : B2/m
TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2Mon. 2/m : B2/m
Forms a series with:
PhlogopiteOxyphlogopite-phlogopite Series

Common AssociatesHide

Associated Minerals Based on Photo Data:
9 photos of Oxyphlogopite associated with NephelineNa3K(Al4Si4O16)
2 photos of Oxyphlogopite associated with HematiteFe2O3
2 photos of Oxyphlogopite associated with Günterblassite(K,Ca,Ba)2(Fe,Ca,Mg,Na)[(Si,Al)13O25(OH)4] · 7H2O ·
2 photos of Oxyphlogopite associated with PerovskiteCaTiO3
2 photos of Oxyphlogopite associated with Pyroxene GroupADSi2O6
1 photo of Oxyphlogopite associated with AnorthiteCa(Al2Si2O8)
1 photo of Oxyphlogopite associated with MagnetiteFe2+Fe3+2O4

Related Minerals - Strunz-mindat GroupingHide

9.EC.BalestraiteKLi2V5+Si4O12Mon. 2 : B2
9.EC.MeifuiteKFe6(Si7Al)O19(OH)4Cl2Tric. 1 : P1
9.EC.05MinnesotaiteFe2+3Si4O10(OH)2Tric. 1 : P1
9.EC.05TalcMg3Si4O10(OH)2Tric. 1 : P1
9.EC.05WillemseiteNi3Si4O10(OH)2Mon.
9.EC.9.EC.VoloshiniteRb(LiAl1.5◻0.5)(Al0.5Si3.5)O10F2Mon. 2/m : B2/b
9.EC.10FerripyrophylliteFe3+Si2O5(OH)Mon. 2/m
9.EC.10PyrophylliteAl2Si4O10(OH)2Tric. 1
9.EC.10LuanshiweiiteKLiAl1.5(Si3.5Al0.5)O10(OH)2Mon. 2/m : B2/b
9.EC.10FluorluanshiweiiteKLiAl1.5(Si3.5Al0.5)O10F2Mon. 2/m : B2/m
9.EC.10ManganiceladoniteK(MgMn3+◻)(Si4O10)(OH)2Mon.
9.EC.10GarmiteCsLiMg2(Si4O10)F2Mon.
9.EC.10GorbunoviteCsLi2(Ti,Fe)Si4O10(F,OH,O)2Mon.
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2Mon. 2/m
9.EC.15CeladoniteK(MgFe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2Mon.
9.EC.15Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4Mon. 2/m : B2/m
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2Mon. 2/m : B2/b
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2Mon.
9.EC.15RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15Tobelite(NH4,K)Al2(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.15AluminoceladoniteK(MgAl◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15ChromphylliteK(Cr,Al)2(AlSi3O10)(OH,F)2Mon. 2/m : B2/b
9.EC.15FerroaluminoceladoniteK(Fe2+Al◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15FerroceladoniteK(Fe2+Fe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15ChromceladoniteK(MgCr◻)(Si4O10)(OH)2Mon. 2 : B2
9.EC.15TainioliteKLiMg2(Si4O10)F2Mon. 2/m : B2/m
9.EC.15Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15UM1988-22-SiO:AlCaFFeHKLiMgKLiMgAl2Si3O10F2Mon.
9.EC.15KreiteriteCsLi2Fe3+(Si4O10)F2Mon.
9.EC.20AnniteKFe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EphesiteNaLiAl2(Al2Si2O10)(OH)2Tric. 1 : P1
9.EC.20HendricksiteKZn3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2Mon. 2 : B2
9.EC.20NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.20SiderophylliteKFe2+2Al(Al2Si2O10)(OH)2Mon.
9.EC.20TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2Mon. 2/m : B2/m
9.EC.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2Mon. 2/m : B2/m
9.EC.20Wonesite(Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4Mon. 2/m : B2/m
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.20TetraferrianniteKFe2+3(Si3Fe3+)O10(OH)2Mon. 2/m : B2/m
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20FluoranniteKFe2+3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20ShirokshiniteK(NaMg2)(Si4O10)F2Mon. 2/m : B2/m
9.EC.20ShirozuliteKMn2+3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2Mon.
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20FluorophlogopiteKMg3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20UM2004-49-SiO:AlCsFHKLi(Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2
9.EC.20Suhailite(NH4)Fe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2Mon. 2/m : B2/m
9.EC.20OrloviteKLi2Ti(Si4O10)OFMon. 2 : B2
9.EC.20Chloroferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(Cl,OH,F)2
9.EC.22PimeliteNi3Si4O10(OH)2 · 4H2OHex.
9.EC.30Chlorophaeite(Ca,Mg,Fe)2Fe2Si4O13 · 10H2O
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.35Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
9.EC.35BityiteCaLiAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
9.EC.35ClintoniteCaAlMg2(SiAl3O10)(OH)2Mon. 2/m : B2/m
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2Mon. 2/m : B2/m
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2Mon. 2/m : B2/m
9.EC.35Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2Mon. 2/m : B2/m
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2Mon. 2/m : B2/m
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)Orth.
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2OMon.
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon. 2/m : B2/m
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.45SpadaiteMgSiO2(OH)2 · H2O (?)
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
9.EC.45SwineforditeLi(Al,Li,Mg)3((Si,Al)4O10)2(OH,F)4 · nH2OMon. 2/m : B2/m
9.EC.45ZincsiliteZn3Si4O10(OH)2 · 4H2O (?)Mon.
9.EC.45FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.45HanjiangiteBa2CaV3+Al(H2AlSi3O12)(CO3)2FMon. 2 : B2
9.EC.50VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2OMon. 2/m
9.EC.52Tarasovitenear NaKAl11Si13O40(OH)9 · 3H2O
9.EC.55Baileychlore(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8Tric. 1
9.EC.55Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8Mon. 2/m : B2/m
9.EC.55ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Cookeite(LiAl4◻)[AlSi3O10](OH)8Mon. 2/m
9.EC.55FranklinfurnaceiteCa2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8Mon. 2 : B2
9.EC.55Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8Orth.
9.EC.55Nimite(Ni,Mg,Al)6((Si,Al)4O10)(OH)8Mon. 2/m : B2/m
9.EC.55Orthochamosite(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55PennantiteMn2+5Al(AlSi3O10)(OH)8Tric.
9.EC.55SudoiteMg2Al3(Si3Al)O10)(OH)8Mon. 2/m : B2/m
9.EC.55DonbassiteAl4.33(Si3Al)O10(OH)8Mon. 2 : B2
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8Tric. 1 : P1
9.EC.55Borocookeite(LiAl4◻)[BSi3O10](OH)8Mon. m : Bb
9.EC.60AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2OMon.
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12Mon.
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2OMon. 2/m : B2/m
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)Mon.
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
9.EC.60Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2OMon.
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon. 2/m : B2/m
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2OMon. 2 : B2
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 · 3.5 H2OMon.
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2Mon.
9.EC.70BurckhardtitePb2(Fe3+Te6+)[AlSi3O8]O6Trig. 3m (3 2/m) : P3 1m
9.EC.75Ferrisurite(Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 · nH2OMon.
9.EC.75Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2Mon. 2 : P21
9.EC.75Niksergievite(Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2OMon.
9.EC.80KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8Mon.

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.

Internet Links for OxyphlogopiteHide

References for OxyphlogopiteHide

Localities for OxyphlogopiteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
France
 
  • Grand Est
    • Haute-Marne
      • Langres
        • Chassigny
Fleet (2003)
Germany
 
  • Baden-Württemberg
    • Karlsruhe Region
      • Rhein-Neckar-Kreis
        • Eberbach
          • Katzenbuckel
Freudenberg (1919)
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Maifeld
        • Ochtendung
Personally collected by Günter Frenz
      • Mendig
        • Bell
Chukanov N.V. et al.: Oxyphlogopite (Mg,Ti,Fe)
    • Vulkaneifel
      • Daun
        • Strohn
Marko Burkhardt Collection
      • Gerolstein
        • Hillesheim
in the collection of Christof Schäfer
        • Hohenfels-Essingen
Blaß (2020)
        • Walsdorf
Blaß (2020)
USA
 
  • Wyoming
    • Sweetwater County
      • Leucite Hills Mining District
Färber (n.d.)
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