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Denningite

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About DenningiteHide

Reynolds M. Denning
Formula:
(Mn2+,Ca,Zn)Te4+2O5
Hardness:
4
Crystal System:
Tetragonal
Name:
Named in honour of Reynolds McConnell Denning, (September 3 1916, Fitchburg, Massachusetts - November 1, 1967, Ann Arbor, Michigan) Professor of Mineralogy, Department of Geology and Mineralogy, University of Michigan, Ann Arbor, Michigan.
The structure of denningite contains chains of (MnO6) and (CaO8) polyhedra, which are cross-linked into a framework by Te4+ cations. A similar motif is found in the structure of spiroffite group minerals, where Te4+ cations are cross-linking sheets of (M2O10) polyhedra.


Classification of DenningiteHide

Approved
First Published:
1961
4.JK.30

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
K : Tellurites without additional anions, without H2O
34.4.1.1

34 : SELENITES, TELLURITES AND SULFITES
4 : A(X2O5)
28.3.10

28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites

Physical Properties of DenningiteHide

Hardness:

Optical Data of DenningiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.890 nε = 2.000
Max Birefringence:
δ = 0.110
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of DenningiteHide

Formula:
(Mn2+,Ca,Zn)Te4+2O5
IMA Formula:
CaMn2+Te4+4O10
Common Impurities:
Ca

Crystallography of DenningiteHide

Crystal System:
Tetragonal
Cell Parameters:
a = 8.82 Å, c = 13.04 Å
Ratio:
a:c = 1 : 1.478
Unit Cell V:
1,014.41 ų (Calculated from Unit Cell)

Type Occurrence of DenningiteHide

Other Language Names for DenningiteHide

Relationship of Denningite to other SpeciesHide

Structurally related to group(s):

Common AssociatesHide

Associated Minerals Based on Photo Data:
Tellurite5 photos of Denningite associated with Tellurite on mindat.org.
Quartz5 photos of Denningite associated with Quartz on mindat.org.
Zemannite3 photos of Denningite associated with Zemannite on mindat.org.
Paratellurite2 photos of Denningite associated with Paratellurite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JK.05WinstanleyiteTiTe4+3O8Iso. m3 (2/m 3) : Ia3
4.JK.05Walfordite(Fe3+,Te6+)Te4+3O8Iso. m3 (2/m 3) : Ia3
4.JK.10SpiroffiteMn2+2Te4+3O8Mon. 2/m : B2/b
4.JK.10ZincospiroffiteZn2Te4+3O8Mon. 2/m
4.JK.15BalyakiniteCu(TeO3)Orth.
4.JK.20RajiteCu(Te4+2O5)Mon. 2/m : P21/b
4.JK.25CarlfriesiteCaTe4+2Te6+O8Mon. 2/m : B2/b
4.JK.35ChekhovichiteBi2Te4+4O11Mon. 2/m
4.JK.40SmirniteBi2Te4+O5Orth. mm2
4.JK.45Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
4.JK.50FairbankitePb(TeO3)Tric.
4.JK.55PlumbotelluritePb(TeO3)Orth.
4.JK.60Magnolite(Hg+2)(Te4+O3)Orth. mm2
4.JK.65MoctezumitePb(UO2)(TeO3)2Mon.
4.JK.70Schmitterite(UO2)(TeO3)Orth.
4.JK.75Cliffordite(UO2)Te4+3O7Iso. m3 (2/m 3) : Pa3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.3.1BalyakiniteCu(TeO3)Orth.
28.3.2RajiteCu(Te4+2O5)Mon. 2/m : P21/b
28.3.3GraemiteCu[TeO3] · H2OOrth. mmm (2/m 2/m 2/m) : Pmma
28.3.4TeineiteCu2+(Te4+O3) · 2H2OOrth. mmm (2/m 2/m 2/m)
28.3.5CesbroniteCu2+3Te6+O4(OH)4Orth.
28.3.6MroseiteCaTe4+(CO3)O2Orth. mmm (2/m 2/m 2/m) : Pbca
28.3.7QuetzalcoatliteZn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2yTrig. 3m (3 2/m) : P3m1
28.3.8ZemanniteMg0.5ZnFe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
28.3.9KinichiliteMg0.5Mn2+Fe3+(Te4+O3)3 · 4.5H2OHex. 6/m : P63/m
28.3.11SpiroffiteMn2+2Te4+3O8Mon. 2/m : B2/b
28.3.12WinstanleyiteTiTe4+3O8Iso. m3 (2/m 3) : Ia3
28.3.13FairbankitePb(TeO3)Tric.
28.3.14PlumbotelluritePb(TeO3)Orth.
28.3.15Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
28.3.16SmirniteBi2Te4+O5Orth. mm2
28.3.17ChekhovichiteBi2Te4+4O11Mon. 2/m
28.3.18Cliffordite(UO2)Te4+3O7Iso. m3 (2/m 3) : Pa3
28.3.19Schmitterite(UO2)(TeO3)Orth.
28.3.20MoctezumitePb(UO2)(TeO3)2Mon.
28.3.21EmmonsiteFe3+2(TeO3)3 · 2H2OTric. 1 : P1
28.3.22BlakeiteFe3+2[TeO3]3 (?)
28.3.23MackayiteFe3+(Te4+2O5)(OH)Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
28.3.24PoughiteFe3+2(TeO3)2(SO4)(H2O)2 · H2OOrth.
28.3.25SonoraiteFe3+(TeO3)(OH) · H2OMon.
28.3.26RodalquilariteFe2(TeO2OH)3(TeO3)ClTric. 1 : P1
28.3.27EztlitePb2+2Fe3+3(Te4+ O3)3(SO4)O2ClMon.
28.3.28KeystoneiteMg0.5Ni2+Fe3+(Te4+O3)3 · 4.5H2OHex.

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 DenningiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mandarino, J.A., Williams, S.J., Mitchell, R.S. (1961) Denningite, a new tellurite mineral from Moctezuma, Sonora, Mexico. Canadian Mineralogist: 7: 340-341. (abstract)
Fleischer, M. (1962) New mineral names. American Mineralogist: 47: 1482-1485.
Mandarino, J.A., Williams, S.J., Mitchell, R.S. (1963) Denningite, a new tellurite mineral from Moctezuma, Sonoro, Mexico. Canadian Mineralogist: 7: 443-452.
Fleischer, M. (1963) New mineral names. American Mineralogist: 48: 1413-1421.
Walitzi, E.M. (1964) Die kristallstruktur von denningit, (Mn, Ca, Zn)Te2O5. Naturwissenschaften: 51: 334-335.
Walitzi, E.M. (1965) Die kristallstruktur von denningit, (Mn,Ca,Zn)Te2O5. Ein beispiel für die koordination um vierwertiges tellur. Tschermaks Mineralogische und Petrographische Mitteilungen: 10: 241-255.

Internet Links for DenningiteHide

Localities for DenningiteHide

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.
Belgium
 
  • Luxembourg Province
    • Stavelot Massif
      • Vielsalm
        • Salmchâteau
http://perso.infonie.be/jose.dehove/photos/Salmchateau.htm
Mexico (TL)
 
  • Sonora
    • Mun. de Moctezuma
      • Moctezuma
Canadian Mineralogist(1962) 7, 340-341
USA
 
  • Utah
    • Utah Co.
      • East Tintic Mts
        • East Tintic District
SEM-EDS analzyed by Dr. Rob Bowell.
Mineral and/or Locality  
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