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Hydroxymanganopyrochlore

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Formula:
(Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)
Colour:
Dark-brown; black
Specific Gravity:
5.398 (Calculated)
Crystal System:
Isometric
Name:
Named according to the nomenclature of the Pyrochlore supergroup with Mn on the A-position and the hydroxyl ion (OH-) on the Y-position.
Mn2+ dominant analog of hydroxycalciopyrochlore.


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Classification of HydroxymanganopyrochloreHide

Approved
Approval Year:
2012
First Published:
2013

Physical Properties of HydroxymanganopyrochloreHide

Colour:
Dark-brown; black
Comment:
Black with red reflexes
Tenacity:
Brittle
Cleavage:
None Observed
Density:
5.398 g/cm3 (Calculated)

Chemical Properties of HydroxymanganopyrochloreHide

Formula:
(Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)
IMA Formula:
(Mn,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)

Crystallography of HydroxymanganopyrochloreHide

Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Cell Parameters:
a = 10.2523(2) Å
Unit Cell V:
1,077.62 ų (Calculated from Unit Cell)
Morphology:
Octahedral crystals.
Comment:
Space group Fd3m

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.969 (100)
2.569 (40)
2.358 (12)
1.816 (47)
1.548 (40)
1.481 (14)
1.284 (10)
1.178 (14)

Type Occurrence of HydroxymanganopyrochloreHide

General Appearance of Type Material:
Octahedral crystals up to 0.7mm in diameter growing on the walls in small miarolitic cavities in sanidinite.
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4226/1

Synonyms of HydroxymanganopyrochloreHide

Other Language Names for HydroxymanganopyrochloreHide

Relationship of Hydroxymanganopyrochlore to other SpeciesHide

Other Members of this group:
Cesiokenopyrochlore□Nb2(O,OH)6Cs1−x (x ∼ 0.20)Iso. m3m (4/m 3 2/m) : Fd3m
Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6FIso.
FluorhydropyrochloreA possible new species (See discussion in Atencio et al.
Fluorkenopyrochlore(□,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F
Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6FIso. m3m (4/m 3 2/m)
Fluorplumbopyrochlore(Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6FIso.
Fluorstrontiopyrochlore(Sr,□)2Nb2(O,OH)6F
Hydrokenopyrochlore2Nb2O4(OH)2(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
Hydroxycalciopyrochlore(Ca,Na,U,□)2(Nb,Ti)2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
Hydroxyplumbopyrochlore(Pb,Ca)2-x(Nb,Ti,Ta)2O6(OH)
Kenoplumbopyrochlore(Pb,□)Nb2O6(□,O)
OxycalciopyrochloreCa2Nb2O6OIso. m3m (4/m 3 2/m) : Fd3m
Oxynatropyrochlore(Na,Ca,U)2Nb2O6(O,OH)
OxyplumbopyrochlorePb2Nb2O6O
Oxyyttropyrochlore-(Y)(Y,◻)2Nb2O6O

Common AssociatesHide

BiotiteA series or subgroup of the Mica Group.
JacobsiteMn2+Fe3+2O4
NoseanNa8(Al6Si6O24)(SO4) · H2O
SanidineK(AlSi3O8)
TephroiteMn2+2SiO4

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 HydroxymanganopyrochloreHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Chukanov, N.V., Blass, G., Zubkova, N.V., Pekov, I.V., Pushcharovsky, D.Y. and Prinz, H. (2012) Hydroxymanganopyrochlore, IMA 2012-005. CNMNC Newsletter No. 13, June 2012, page 813; Mineralogical Magazine, 76, 807-817.
Blaß, G. & Kruijen, F. (2012): Die neuen Mineralfunde aus der Vulkaneifel. Mineralien-Welt 23 (5), 38-48 (in German).
Chukanov, N. V., Blaß, G., Zubkova, N. V.,Pekov, I. V., Pushcharovskii, D. Yu. & H. Prinz (2013): Hydroxymanganopyrochlore: A new mineral from the Eifel volcanic region, Germany. Doklady Akademii Nauk, 449 (2), 215-218.[In Russian]
Chukanov, N. V., Blaß, G., Zubkova, N. V.,Pekov, I. V., Pushcharovskii, D. Yu. & H. Prinz (2013): Hydroxymanganopyrochlore: A new mineral from the Eifel volcanic region, Germany. Doklady Earth Sciences, 449 (1), 342-345 [In english]

Internet Links for HydroxymanganopyrochloreHide

Localities for HydroxymanganopyrochloreHide

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.
Germany (TL)
 
  • Rhineland-Palatinate
    • Eifel
      • Laach lake volcanic complex
        • Mendig
          • Niedermendig
Chukanov, N.V., Blass, G., Zubkova, N.V., Pekov, I.V., Pushcharovsky, D.Y. and Prinz, H. (2012) Hydroxymanganopyrochlore, IMA 2012-005. CNMNC Newsletter No. 13, June 2012, page 813; Mineralogical Magazine, 76, 807-817; Blaß, G. & Kruijen, F. (2012): Die neuen Mineralfunde aus der Vulkaneifel. Mineralien-Welt 23 (5), 38-48 (in German).
Mineral and/or Locality  
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