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Deerite

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Formula:
(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Colour:
Black
Lustre:
Sub-Adamantine
Hardness:
6
Specific Gravity:
3.837
Crystal System:
Monoclinic
Name:
Nemed in 1965 by Stuart Olof Agrell, Michael G. Brown, and Duncan McKie in honor of Professor William Alexander Deer [October 26, 1910 Manchester, England, United Kingdom - February 8, 2009 Cambridge, England, United Kingdom], mineralogist-petrologist, Cambridge University, Cambridge, England. Prof. Deer was one of the authors of the Rock-Forming Minerals book series (Deer, Howie and Zussman).
The Mn analogue is known as 'UM1987-19-SiO:FeHMgMnTi'.


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Classification of DeeriteHide

Approved
Approval Year:
1964
9.DH.60

9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
69.2.3.3

69 : INOSILICATES Chains with Side Branches or Loops
2 : Chains with Side Branches or Loops with P>2
14.18.33

14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe

Physical Properties of DeeriteHide

Sub-Adamantine
Transparency:
Translucent
Colour:
Black
Streak:
Dark gray
Hardness:
Tenacity:
Brittle
Cleavage:
Distinct/Good
{110}
Density:
3.837 g/cm3 (Measured)    3.86 g/cm3 (Calculated)

Optical Data of DeeriteHide

Type:
Biaxial
RI values:
nα = 1.840(1) nγ = 1.870(1)
Birefringence:
0.030
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Pleochroism:
Weak
Comments:
X = dark brown, Y = Z = very dark brown, Z || c

Chemical Properties of DeeriteHide

Formula:
(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
IMA Formula:
Fe2+6Fe3+3(Si6O17)O3(OH)5
Common Impurities:
Mg

Crystallography of DeeriteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 10.786(8) Å, b = 18.88(2) Å, c = 9.564(9) Å
β = 107.45(5)°
Ratio:
a:b:c = 0.571 : 1 : 0.507
Unit Cell V:
1,857.98 ų (Calculated from Unit Cell)
Z:
4
Twinning:
[110] twin axis; submicroscopic, pervasive.

Type Occurrence of DeeriteHide

Synonyms of DeeriteHide

Other Language Names for DeeriteHide

German:Deerit
Russian:Дирит
Spanish:Deerita

Relationship of Deerite to other SpeciesHide

Other Members of this group:
HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13Tric.
JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2Tric.
Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44Tric.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Crossite1 photo of Deerite associated with Crossite on mindat.org.
Pyrite1 photo of Deerite associated with Pyrite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DH.05LeucophaniteNaCaBeSi2O6FOrth. 2 2 2 : P21 21 21
9.DH.10OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2OMon.
9.DH.15HaradaiteSrVSi2O7Orth.
9.DH.15SuzukiiteBaVSi2O7Orth.
9.DH.20BatisiteBaNaNaTi2(Si4O12)O2Orth.
9.DH.20Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2Orth.
9.DH.25TaikaniteSr3BaMn2+2(Si4O12)O2Mon.
9.DH.30KrauskopfiteBaSi2O5 · 3H2OMon.
9.DH.35Balangeroite(Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40Mon.
9.DH.35GageiteMn21(Si4O12)2O3(OH)20Mon. 2/m
9.DH.40AenigmatiteNa2Fe2+5Ti(Si6O18)O2Tric. 1 : P1
9.DH.40DorriteCa4(Mg3Fe3+9)O4(Si3Al8Fe3+O36)Tric.
9.DH.40HøgtuvaiteCa4[Fe2+6Fe3+6]O4[Si8Be2Al2O36]Tric. 1 : P1
9.DH.40KrinoviteNa2Mg4Cr3+2(Si6O18)O2Tric.
9.DH.40Makarochkinite(Ca,Na)2Fe2+4Fe3+Ti[O2|BeAlSi4O18]Tric. 1 : P1
9.DH.40RhöniteCa2(Mg,Fe2+,Fe3+,Ti)6[O2|(Si,Al)6O18]Tric. 1 : P1
9.DH.40SerendibiteCa4[Mg6Al6]O4[Si6B3Al3O36]Tric. 1 : P1
9.DH.40WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]Tric. 1 : P1
9.DH.40WilkinsoniteNa2Fe2+4Fe3+2(Si6O18)O2Tric. 1 : P1
9.DH.45SapphirineMg4(Mg3Al9)O4[Si3Al9O36]Mon. 2/m : P21/b
9.DH.50Khmaralite(Mg,Al,Fe)16[(Al,Si,Be)12O36]O4Mon. 2/m : P21/b
9.DH.55Surinamite(Mg,Fe)3Al4BeSi3O16Mon.
9.DH.65HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13Tric.
9.DH.65Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44Tric.
9.DH.70JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2Tric.
9.DH.75AgrelliteNaCa2Si4O10FTric.

Related Minerals - Dana Grouping (8th Ed.)Hide

69.2.3.1HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13Tric.
69.2.3.2Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44Tric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.18.1Nambulite(Li,Na)Mn4Si5O14(OH)Tric.
14.18.2Natronambulite(Na,Li)(Mn,Ca)4Si5O14OHTric.
14.18.3ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
14.18.4NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
14.18.5Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2OTrig.
14.18.6AbswurmbachiteCuMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
14.18.7Donpeacorite(Mn2+,Mg)Mg[SiO3]2Orth.
14.18.8KanoiteMn2+(Mg,Mn2+)Si2O6Mon. 2/m : P21/b
14.18.9CaryopiliteMn2+3Si2O5(OH)4Mon.
14.18.10Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
14.18.11Tirodite
14.18.12Manganhumite(Mn2+,Mg)7(SiO4)3(OH)2Orth.
14.18.13BustamiteCaMn2+(Si2O6)Tric. 1 : P1
14.18.14GlaucochroiteCaMn2+SiO4Orth.
14.18.15Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
14.18.16SantaclaraiteCaMn4[Si5O14OH](OH) · H2OTric.
14.18.17FerrobustamiteCaFe2+(Si2O6)Tric.
14.18.18JohannseniteCaMn2+Si2O6Mon. 2/m : B2/b
14.18.19NeltneriteCaMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
14.18.20OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
14.18.21InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2OTric. 1 : P1
14.18.22OrientiteCa8Mn3+10(SiO4)3(Si3O10)3(OH)10 · 4H2O Orth.
14.18.23RuiziteCa2Mn3+2[Si4O11(OH)2](OH)2·2H2OMon. 2
14.18.24BostwickiteCaMn6Si3O16 · 7H2OOrth.
14.18.25KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2OHex.
14.18.26LithiomarsturiteLiCa2Mn2Si5O14(OH)Tric.
14.18.27SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
14.18.28KvanefjelditeNa4(Ca,Mn)(Si3O7)2(OH)2Orth.
14.18.29MarsturiteNaCaMn3Si5O14(OH)Tric. 1 : P1
14.18.30RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
14.18.31Richterite{Na}{NaCa}{Mg5}(Si8O22)(OH)2Mon.
14.18.32Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2O
14.18.34Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3Iso.
14.18.35PyroxmangiteMnSiO3Tric. 1
14.18.36Dannemorite☐{Mn2+2}{Fe2+5}(Si8O22)(OH)2
14.18.37Neotocite(Mn,Fe,Mg)SiO3 · H2OAmor.
14.18.38BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)Tric. 1 : P1
14.18.39ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)Tric.
14.18.40ÖrebroiteMn2+3(Sb5+,Fe3+)(SiO4)(O,OH)3Hex.

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 DeeriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Agrell, S.O. (1964), Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California (title only), American Mineralogist: 49.
Agrell, S.O., M.G. Bown & McKie (1965), Deerite, howieite and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California: American Mineralogist: 50: 278.
Carmichael, I.S.E., W.S. Fyfe & D.J. Machin (1966), Low-spin ferrous iron in the iron silicate deerite: Nature: 211: 1389.
Boerner, U. (1969), Deerit, Howieit und Zussmanit, neue seltene Mineralien von einen Steinbruch bei Laytonville in Nord-Kalifornien: Aufschluss: 20: 338-341.
Fleet, M.E. (1977), The crystal structure of deerite: American Mineralogist: 62: 990-998.
American Mineralogist: 62: 1262.

Internet Links for DeeriteHide

Localities for DeeriteHide

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.
China
 
  • Fujian Province
    • Longyan Prefecture
      • Shanghang Co.
        • Zijinshan ore field
Kaihui Yang (1998): The Gangue 57(1), 1-5
  • Inner Mongolia Autonomous Region
    • Xilin Gol League (Xilinguole Prefecture)
      • Erenhot Co. (Erlianhaote Co.)
        • Wenduermiao Fe deposit
Feng Xiancan, Yang Ruiying, Song Guisen, Li Chenggui, and Lu Guojun (1986): Acta Mineralogica Sinica 6(4), 333-337.
  • Xinjiang Autonomous Region
    • Akesu Prefecture (Aksu Prefecture; Aqsu Prefecture)
      • Akesu Co. (Aksu Co.; Aqsu Co.)
Lifei Zhang, Wenbo Jiang, Chunjing Wei, and Shenbao Dong (1999): Science in China, Series D (Earth Sciences), 42 (3), 233-239.
Cuba
 
  • Villa Clara Province
Stanek, K. P., Maresch, W., Grafe, F., Gravel, C. H., & Baumann, A. (2006). Structure, tectonics and metamorphic development of the Sancti Spiritus Dome (eastern Escambray massif, Central Cuba). Geologica Acta, 4(1), 151.; Maresch, W. V., Grevel, C., Stanek, K. P., & Carpenter, M. A. (2007). Coexisting jadeite and omphacite in metabasites from the Escambray Massif, Cuba. Geochim. Cosmochim. Acta, 71, A621.
France
 
  • Auvergne-Rhône-Alpes
    • Haute-Savoie
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
  • Brittany
    • Morbihan
      • Groix Island
        • Primiture
Chauris, L. (2014): Minéraux de Bretagne, Les Editions du Piat, 275. Audren, C., Triboulet, C., Chauris, L., Lefort, J.P., Vigneresse J.L., Audrain, J., Thiéblemont, D., Goyallon, J., Jégouzo, P., Guennoc, P., Augris, C., Carn, A. (1993) Notice explicative de la feuille île de Groix à 1/25000, B.R.G.M., Editions du Service géologique national, p. 17.
  • Corsica
    • Haute-Corse
      • Corte
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
Greece
 
  • Aegean Islands Department (Aiyaíon)
    • Kykládes Prefecture
      • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
Reinecke, T. (1987): Manganoan deerite and calderitic garnet from high-pressure metamorphic Fe-Mn-rich quartzites on Andros Island, Greece. Mineral. Mag.: 51: 274-25; in: Jambor, J.L., Burke, E.A.J., Ercit, T.S., Grice, J.D. (1988): New mineral Names. American Mineralogist: 73: 1498
        • Sifnos Island
Eur. J. Mineral. , 1992, 4, pp. 619-634.
Italy
 
  • Aosta Valley
    • Saint-Marcel
Martin, S, Godard, G., Rebay, G. (2004): The subducted Tethys in the Aosta Valley (Italian western Alps). The 32nd international geological Congress, Field trip Guide Book B-02, 48 pp
  • Piedmont
    • Torino Province
      • Chisone Valley
        • Pragelato
          • Troncea Valley
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
      • Germanasca Valley
        • Prali
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
      • Susa Valley
        • Cesana Torinese
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
New Caledonia
 
  • Northern Province
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
Turkey
 
  • Central Anatolia Region
    • Eskişehir Province
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
USA
 
  • California
    • Mendocino Co.
      • Coastal Range
        • Laytonville
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
Agrell, S.O. (1964), Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville district, Mendocino County, California (title only), Am. Min.: 49.; Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.; Robert Muir Wood (1982) The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
        • Longvale
Anonymous (1964), Three new minerals from California (deerite, howieite, and zussmanite): California Division of Mines and Geology, Mineral Information Service: 17: 138; USGS MRDS database (2005), loc. file ID #10286314 & 10031493.
        • Round Valley
Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.
    • San Benito Co.
      • Diablo Range
        • Llanada
          • Panoche Pass
Panoche Pass, California. Geological Society of America Bulletin: 76: 891; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 493.
Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.
    • Sonoma Co.
      • Coast Range
        • Cazadero
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 433, 493.
Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.
  • Oregon
    • Coos Co.
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259; The Laytonville Quarry (Mendocino County California) Exotic Block: Iron-rich Blueschist-Facies Subduction-Zone Metamorphism. Mineralogical Magazine 45:87-99.
    • Curry Co.
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
  • Washington
    • Skagit Co.
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
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