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Deerite

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Formula:
(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
System:
Monoclinic
Colour:
Black
Hardness:
6
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).
This page provides mineralogical data about Deerite.

Classification of Deerite

Approved 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
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First Recorded Occurrence of Deerite

Year of Discovery:
1964

Occurrences of Deerite

Geological Setting:
Iron-rich metasediments from the blueschist facies of metamorphism.

Physical Properties of Deerite

Sub-Adamantine
Diaphaneity (Transparency):
Translucent
Colour:
Black
Streak:
Dark gray
Hardness (Mohs):
6
Tenacity:
Brittle
Cleavage:
Distinct/Good
{110}
Density:
3.837 g/cm3 (Measured)    3.86 g/cm3 (Calculated)

Crystallography of Deerite

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 Volume:
V 1,857.98 ų (Calculated from Unit Cell)
Z:
4
Twinning:
[110] twin axis; submicroscopic, pervasive.

Optical Data of Deerite

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 Deerite

Formula:
(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
Essential elements:
All elements listed in formula:
Common Impurities:
Mg

Relationship of Deerite to other Species

9.DH.05LeucophaniteNaCaBeSi2O6F
9.DH.10OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2O
9.DH.15HaradaiteSrVSi2O7
9.DH.15SuzukiiteBaVSi2O7
9.DH.20BatisiteBaNaNaTi2(Si4O12)O2
9.DH.20Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
9.DH.25TaikaniteSr3BaMn22+(Si4O12)O2
9.DH.30KrauskopfiteBaSi2O5 · 3H2O
9.DH.35Balangeroite(Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40
9.DH.35GageiteMn21(Si4O12)2O3(OH)20
9.DH.40AenigmatiteNa2Fe52+Ti(Si6O18)O2
9.DH.40DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
9.DH.40Høgtuvaite(Ca,Na)2(Fe2+,Fe3+,Ti)6[O2|Be(Si,Al)5O18]
9.DH.40KrinoviteNa2Mg4Cr23+(Si6O18)O2
9.DH.40MakarochkiniteCa2Fe42+Fe3+Ti[O2|BeAlSi4O18]
9.DH.40RhöniteCa2(Mg,Fe2+,Fe3+,Ti)6[O2|(Si,Al)6O18]
9.DH.40Serendibite(Ca,Na)2(Mg,Fe2+)3(Al,Fe3+)3[O2|(Si,Al,B)6O18]
9.DH.40WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]
9.DH.40WilkinsoniteNa2Fe42+Fe23+(Si6O18)O2
9.DH.45Sapphirine(Mg,Fe)4-xAl4+x[Al4+xSi2-xO18]O2
9.DH.50Khmaralite(Mg,Al,Fe)16[(Al,Si,Be)12O36]O4
9.DH.55Surinamite(Mg,Fe)3Al4BeSi3O16
9.DH.65HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
9.DH.65Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44
9.DH.70JohninnesiteNa2Mn92+Mg7(OH)8[AsO4]2[Si6O17]2
9.DH.75AgrelliteNaCa2Si4O10F
14.18.1Nambulite(Li,Na)Mn4Si5O14(OH)
14.18.2Natronambulite(Na,Li)(Mn,Ca)4Si5O14OH
14.18.3ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2O
14.18.4NorrishiteKLiMn23+(Si4O10)O2
14.18.5Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2O
14.18.6AbswurmbachiteCuMn63+(SiO4)O8
14.18.7Donpeacorite(Mn2+,Mg)Mg[SiO3]2
14.18.8KanoiteMn2+(Mg,Mn2+)Si2O6
14.18.9Caryopilite(Mn,Mg)3(Si2O5)(OH)4
14.18.10Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
14.18.11Tirodite
14.18.12Manganhumite(Mn2+,Mg)7(SiO4)3(OH)2
14.18.13BustamiteCaMn2+(Si2O6)
14.18.14GlaucochroiteCaMn2+SiO4
14.18.15Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2O
14.18.16SantaclaraiteCaMn4[Si5O14OH](OH) · H2O
14.18.17FerrobustamiteCaFe2+(Si2O6)
14.18.18JohannseniteCaMn2+Si2O6
14.18.19NeltneriteCaMn63+(SiO4)O8
14.18.20OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2O
14.18.21InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
14.18.22OrientiteCa2Mn2+Mn23+(Si3O10)(OH)4
14.18.23RuiziteCa2Mn23+[(OH)2|H2Si4O13] · 2H2O
14.18.24BostwickiteCaMn6Si3O16 · 7H2O
14.18.25KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2O
14.18.26LithiomarsturiteLiCa2Mn2Si5O14(OH)
14.18.27SéranditeNa(Mn2+,Ca)2(HSi3O9)
14.18.28KvanefjelditeNa4(Ca,Mn)(Si3O7)2(OH)2
14.18.29MarsturiteNaCaMn3Si5O14(OH)
14.18.30RaiteNa4Mn32+Ti0.25Si8O20(OH)2 · 10H2O
14.18.31Richterite{Na}{CaNa}{Mg5}(Si8O22)(OH)2
14.18.32Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2O
14.18.34Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
14.18.35PyroxmangiteMnSiO3
14.18.36Dannemorite
14.18.37Neotocite(Mn,Fe,Mg)SiO3 · H2O
14.18.38BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
14.18.39ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)
14.18.40ÖrebroiteMn32+(Sb5+,Fe3+)(SiO4)(O,OH)3

Other Names for Deerite

Name in Other Languages:
German:Deerit
Russian:Дирит
Spanish:Deerita

Other Information

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 Deerite

Reference List:
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 Deerite

Localities for Deerite

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.
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
 
  • Corsica
    • Haute-Corse
      • Corte
R. Muir Wood (1979) The Iron-Rich Blueschist Facies Minerals: I. Deerite. Mineralogical Magazine 43:251-259
  • Rhône-Alpes
    • Haute-Savoie
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)
        • 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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