Mindat Logo

Axinite-(Mn)

Formula:
Ca
 
2
Mn
2+
 
Al
 
2
[OH|BSi
 
4
O
 
15
]
System:TriclinicColour:Brown, golden-yellow
Hardness:6½ - 7

Classification of Axinite-(Mn)

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/E.06-30
Nickel-Strunz 10th (pending) edition ID:9.BD.20

9 : SILICATES (Germanates)
B : Sorosilicates
D : Si2O7 groups, with additional anions; cations in tetrahedral [4] and greater coordination
Dana 8th edition ID:56.2.2.3

56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Hey's CIM Ref.:17.5.40

17 : Silicates Containing other Anions
5 : Borosilicates
mindat.org URL:http://www.mindat.org/min-2502.html
Please feel free to link to this page.

Type Occurrence of Axinite-(Mn)

Type Locality:Harz Mts, Lower Saxony, Germany
Year of Discovery:1909

Physical Properties of Axinite-(Mn)

Lustre:Vitreous
Colour:Brown, golden-yellow
Streak:White
Hardness (Mohs):6½ - 7

Crystallography of Axinite-(Mn)

Crystal System:Triclinic
Cell Parameters:a = 7.16Å, b = 9.19Å, c = 8.97Å
α = 88.26°, β = 82.8°, γ = 77.26°
Ratio:a:b:c = 0.779 : 1 : 0.976
Unit Cell Volume:V 571.16 ų (Calculated from Unit Cell)
Structure
  Reference
Andreozzi G B Lucchesi S Graziani G Russo U (2004) Site distribution of Fe2+ and Fe3+ in axinite mineral group: New crystal-chemical formula Sample 47. American Mineralogist 89:1763-1771.

Show
Unit Cell | Structure | Polyhedra

Style
Black Background | White Background

Rotation
Stop | Start

Labels
Label Atoms | Off

More Crystal Structures
Click here to view more crystal structures at the American Mineralogist Crystal Structure Database

Optical Data of Axinite-(Mn)

Type:Biaxial (-)
RI values: nα = 1.672 - 1.693 nβ = 1.677 - 1.701 nγ = 1.681 - 1.704
2V:Measured: 69° to 87°, Calculated: 62° to 82°
Maximum Birefringence:δ = 0.009 - 0.011

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:strong

Chemical Properties of Axinite-(Mn)

Formula:
Ca
 
2
Mn
2+
 
Al
 
2
[OH|BSi
 
4
O
 
15
]
Essential elements:Al, B, Ca, H, Mn, O, Si
All elements listed in formula:Al, B, Ca, H, Mn, O, Si
Common Impurities:Ti,Fe,Mg,Na,K,H2O

Relationship of Axinite-(Mn) to other Species

Series:Forms a series with Tinzenite (see here)
Forms a series with Axinite-(Fe) (see here)
Related to:
  • Axinite Group
  • Related Minerals - Nickel-Strunz Grouping):

    - +
    9.BD.05Bertrandite
    Be
     
    4
    [(OH)
     
    2
    |Si
     
    2
    O
     
    7
    ]
    9.BD.10Hemimorphite
    Zn
     
    4
    [(OH)
     
    2
    |Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BD.15Junitoite
    CaZn
     
    2
    [Si
     
    2
    O
     
    7
    ] · H
     
    2
    O
    9.BD.20Axinite-(Fe)
    Ca
     
    2
    Fe
    2+
     
    Al
     
    2
    [OH|BSi
     
    4
    O
     
    15
    ]
    9.BD.20Axinite-(Mg)
    Ca
     
    2
    MgAl
     
    2
    [OH|BSi
     
    4
    O
     
    15
    ]
    9.BD.20Tinzenite
    (Ca,Mn
    2+
     
    ,Fe
    2+
     
    )
     
    3
    Al
     
    2
    [OH|BSi
     
    4
    O
     
    15
    ]
    9.BD.25Vistepite
    SnMn
     
    4
    B
     
    2
    Si
     
    4
    O
     
    16
    (OH)
     
    2
    9.BD.30Boralsilite
    Al
     
    16
    B
     
    6
    Si
     
    2
    O
     
    27
    9.BD.35Werdingite
    (Mg,Fe)
     
    2
    Al
     
    14
    Si
     
    4
    B
     
    4
    O
     
    37
    Related Minerals - Hey's Index Grouping:

    - +
    17.5.1Manandonite
    LiAl
     
    4
    Si
     
    3
    BO
     
    10
    (OH)
     
    6
    17.5.2Reedmergnerite
    Na[BSi
     
    3
    O
     
    8
    ]
    17.5.3Searlesite
    NaBSi
     
    2
    O
     
    5
    (OH)
     
    2
    17.5.4Olenite
    (Na,[ ])[(Al,Li)
     
    3
    ][Al
     
    6
    ][(O,OH)
     
    3
    |OH|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.5Elbaite
    [Na][(Li,Al)
     
    3
    ][Al
     
    6
    ][(OH)
     
    3
    |OH|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.6Kalborsite
    K
     
    6
    [Cl|B(OH)
     
    4
    |Al
     
    4
    Si
     
    6
    O
     
    20
    ]
    17.5.7Boromuscovite
    KAl
     
    2
    [(OH)
     
    2
    |BSi
     
    3
    O
     
    10
    ]
    17.5.8Poudretteite
    KNa
     
    2
    B
     
    3
    Si
     
    12
    O
     
    30
    17.5.9Liddicoatite
    [Ca][Li
     
    2
    Al][Al
     
    6
    ][(OH)
     
    3
    |F|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.10Datolite
    CaB[OH|SiO
     
    4
    ]
    17.5.11Danburite
    CaB
     
    2
    Si
     
    2
    O
     
    8
    17.5.12Howlite
    Ca
     
    2
    B
     
    5
    SiO
     
    9
    (OH)
     
    5
    17.5.13Bakerite
    Ca
     
    4
    B
     
    4
    [(OH)
     
    4
    |HBO
     
    4
    |(SiO
     
    4
    )
     
    3
    ]
    17.5.14Oyelite
    Ca
     
    10
    Si
     
    8
    B
     
    2
    O
     
    29
    ·12.5H
     
    2
    O
    17.5.15Kornerupine
    Mg
     
    3
    Al
     
    6
    (Si,Al,B)
     
    5
    O
     
    21
    (OH)
    17.5.16Harkerite
    Ca
     
    24
    Mg
     
    8
    Al
     
    2
    Si
     
    8
    (O,OH)
     
    32
    (BO
     
    3
    )
     
    8
    (CO
     
    3
    )
     
    8
    (H
     
    2
    O,Cl)
    17.5.17Serendibite
    (Ca,Na)
     
    2
    (Mg,Fe
    2+
     
    )
     
    3
    (Al,Fe
    3+
     
    )
     
    3
    [O
     
    2
    |(Si,Al,B)
     
    6
    O
     
    18
    ]
    17.5.18Stillwellite-(Ce)
    (Ce,La,Ca)BSiO
     
    5
    17.5.19Tadzhikite-(Ce)
    (Ca,Ce)
     
    4
    (Ca,Y)
     
    2
    (Ti
    4+
     
    ,Fe
    3+
     
    ,Al)[B
     
    4
    Si
     
    4
    O
     
    22
    (O,OH)
     
    6
    ](OH)
     
    2
    17.5.20Melanocerite-(Ce)
    (Ce,Ca)
     
    5
    (Si,B)
     
    3
    O
     
    12
    (OH,F)·nH
     
    2
    O
    17.5.21Okanoganite-(Y)
    (Na,Ca)
     
    3
    (Y,Ce)
     
    12
    Si
     
    6
    B
     
    2
    O
     
    27
    F
     
    14
    17.5.22Tritomite-(Ce)
    (Ce,La,Y,Th)
     
    5
    (Si,B)
     
    3
    (O,OH,F)
     
    13
    17.5.23Tritomite-(Y)
    (Y,Ca,La,Fe)
     
    5
    (Si,B,Al)
     
    3
    (O,OH,F)
     
    13
    17.5.24Cappelenite-(Y)
    Ba(Y,Ce)
     
    6
    Si
     
    3
    B
     
    6
    O
     
    24
    F
     
    2
    17.5.25Dumortierite
    (Al,Fe
    3+
     
    )
     
    7
    [O
     
    3
    |BO
     
    3
    |(SiO
     
    4
    )
     
    3
    ]
    17.5.26Holtite
    (Ta,Sb)Al
     
    6
    [O
     
    3
    |BO
     
    3
    |(SiO
     
    4
    )
     
    3
    ]
    17.5.27Dravite
    [Na][Mg
     
    3
    ][Al
     
    6
    ][(OH)
     
    3
    |OH|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.28 Ferridravite
    17.5.29Axinite-(Mg)
    Ca
     
    2
    MgAl
     
    2
    [OH|BSi
     
    4
    O
     
    15
    ]
    17.5.30Uvite
    [Ca][(Mg,Fe
    2+
     
    )
     
    3
    ][MgAl
     
    5
    ][(OH)
     
    3
    |OH|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.31Garrelsite
    Ba
     
    3
    NaSi
     
    2
    B
     
    7
    O
     
    16
    (OH)
     
    4
    17.5.32Tienshanite
    Na
     
    2
    BaMnTiB
     
    2
    Si
     
    6
    O
     
    20
    17.5.33Leucosphenite
    BaNa
     
    4
    Ti
     
    2
    B
     
    2
    Si
     
    10
    O
     
    30
    17.5.34Taramellite
    Ba
     
    4
    (Fe
    3+
     
    ,Ti,Fe
    2+
     
    ,Mg)
     
    4
    (B
     
    2
    Si
     
    8
    O
     
    27
    )O
     
    2
    Cl
     
    x
    17.5.35Titantaramellite
    Ba
     
    4
    (Ti,Fe
    3+
     
    ,Fe
    2+
     
    ,Mg)
     
    4
    (B
     
    2
    Si
     
    8
    O
     
    27
    )O
     
    2
    Cl
     
    x
    17.5.36Nagashimalite
    Ba
     
    4
    (V,Ti)
     
    4
    B
     
    2
    Si
     
    8
    O
     
    27
    (O,OH)
     
    2
    Cl
    17.5.37Chromdravite
    [Na][Mg
     
    3
    ][(Cr
    3+
     
    ,Fe
    3+
     
    )
     
    6
    ][(OH)
     
    3
    |OH|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.38Wawayandaite
    Ca
     
    6
    Mn
     
    2
    BBe
     
    9
    Si
     
    6
    O
     
    23
    (OH,Cl)
     
    15
    17.5.39Werdingite
    (Mg,Fe)
     
    2
    Al
     
    14
    Si
     
    4
    B
     
    4
    O
     
    37
    17.5.41Axinite
    17.5.42Tinzenite
    (Ca,Mn
    2+
     
    ,Fe
    2+
     
    )
     
    3
    Al
     
    2
    [OH|BSi
     
    4
    O
     
    15
    ]
    17.5.44Schorl
    [Na][Fe
    2+
    3
    ][Al
     
    6
    ][(OH)
     
    3
    |OH|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.45Buergerite
    [Na][Fe
    3+
    3
    ][Al
     
    6
    ][O
     
    3
    |F|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.46Feruvite
    [Ca][(Fe
    2+
     
    ,Mg)
     
    3
    ][MgAl
     
    5
    ][(OH)
     
    3
    |OH|(BO
     
    3
    )
     
    3
    |Si
     
    6
    O
     
    18
    ]
    17.5.47Axinite-(Fe)
    Ca
     
    2
    Fe
    2+
     
    Al
     
    2
    [OH|BSi
     
    4
    O
     
    15
    ]
    17.5.48Homilite
    Ca
     
    2
    (Fe
    2+
     
    ,Mg)B
     
    2
    [O|SiO
     
    4
    ]
     
    2
    17.5.49Grandidierite
    (Mg,Fe
    2+
     
    )(Al,Fe
    3+
     
    )
     
    3
    [O
     
    2
    |BO
     
    3
    |SiO
     
    4
    ]
    17.5.50Hyalotekite
    (Ba,Pb,Ca,K)
     
    6
    (B,Si,Al)
     
    2
    (Si,Be)
     
    10
    O
     
    28
    (F,Cl)
    17.5.51Hellandite-(Y)
    (Ca,Y)
     
    6
    (Al,Fe
    3+
     
    )Si
     
    4
    B
     
    4
    O
     
    20
    (OH)
     
    4

    Other Names for Axinite-(Mn)

    Synonyms:
    ManganaxiniteManganseverginiteManganseveringiteSeverginite
    Other Languages:
    Esperanto:Manganaksinito
    German:Manganaxinit
    Manganseverginit
    Manganseveringit
    Severginit
    Sewerginit
    Russian:Аксинит-(Mn)
    Spanish:Manganaxinita
    Manganseverginita
    Manganseveringita
    Severginita

    Other Information

    Fluorescence in UV light:Magenta-red (SW UV) (Franklin, NJ massive material only).
    Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

    References for Axinite-(Mn)

    Reference List:American Mineralogist (1968): 53: 1407-1411.

    Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

    Internet Links for Axinite-(Mn)

    Search Engines:
  • Look for Axinite-(Mn) on Google
  • Look for Axinite-(Mn) images on Google
  • External Links:
  • Look for Axinite-(Mn) on Webmineral
  • Look for Axinite-(Mn) on Athena Mineralogy
  • Look for Axinite-(Mn) on Wikipedia
  • Look for Axinite-(Mn) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Axinite-(Mn) in the Natural History Museum (London) online catalogue
  • Manganaxinite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Search for - Axinite-(Mn) - on e-Rocks Mineral Sales & Auctions
  • Fine Minerals from Dan Weinrich Minerals
  • Wilensky Fine Minerals
  • The Arkenstone - Fine Minerals
  • Buy Fine Minerals from mineralsweb.com
  • High-end worldwide specimens & outstanding customer service
  • Fabre Minerals - search for Axinite-(Mn) specimens
  • Top quality minerals from Kristalle of California
  • Buy from David K Joyce minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy fine minerals and gemstones from Pala International
  • Jobs:
  • Mining & Geology Jobs
  • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Axinite-(Mn)

    The 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.
    These maps work faster with Firefox!
    (TL) indicates type locality. ? 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.
    Australia
     
    • New South Wales
      • Yancowinna Co.
    Birch BH Book
    Canada
     
    • Ontario
      • Hastings Co.
        • Marmora Township
    Dana's New Mineralogy
    France
     
    • Rhône-Alpes
      • Isère
        • Bourg d'Oisans
          • St Christophe-en-Oisans
    Gautron, L. and Meisser, N. (2001). Prehnite from La Combe de la Selle, Saint Christophe en Oisans - Isère - France. Mineralogical Record, 32 (3), 223-232.
    Germany
     
    • Lower Saxony
    AM 64 (1979), 635; HB2/2 (1995)
    Ireland
     
    • Co. Monaghan
      • Calliagh
    No reference listed
    Italy
     
    • Liguria
      • Genova Province
        • Ne
          • Graveglia Valley
    Redazionale (2005): Sistematica ligure: resoconto 2005. Notiziario di Mineralogia del Ferrania Club, 19 , 3-5.
    Antofilli, Borgo, Palenzona, 1985. I nostri minerali. Geologia e mineralogia in Liguria. Edizioni Melita, La Spezia.
            • Reppia
    Redazione (2005): Sistematica ligure: resoconto 2005. Notiziario di Mineralogia Ferrania Club, 19, 3-5.
    • Piedmont
      • Cuneo Province
        • Varaita Valley
          • Bellino
    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.
    • Sardinia
      • Olbia-Tempio Pausania Province
        • Calangianus
    Tanca, G.A., Gamboni, A., Mamberti, M. & Mascia, S. (2007) – Furru e Conca, Massiccio granitico del Monte Limbara, Calangianus, Olbia-Tempio Pausania - Rivista Mineralogica Italiana, Milano. 31,4,pp.274-281.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Saitama Prefecture
    H. Momoi (1964) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 39-63.
    • Kyushu Island
      • Oita prefecture
        • Ono-gun
    Fluorite: The Collector's Choice. Extra Lapis English No. 9
    • Nansei Archipelago
      • Kagoshima Prefecture
        • Amami-Oshima Island
    Momoi, H. (1964) Mem. Fac. Sci., Kyushu University, Series D, Geology, 15, #1, 73-78.
    • Shikoku Island
      • Kochi Prefecture
        • Outoyo (Ohtoyo)
    Kazakhstan
     
    • Atasu - Karazhal - Zhayrem area
    Kayupova, M.M. (1965) Doklady of the Academy of Sciences U.S.S.R., Earth Science sections, 163, 97-100.
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region (Betafo - Antsirabé region)
        • Sahatany Pegmatite Field (Mt Bity (Ibity) area)
          • Sahatany Valley
    Larsen, K. E. (2003): Mineralene i Sahatany pegmatittfelt, Madagaskar. Bergverksmuseets skrifter 25, 5-18 (in norwegian)
    Morocco
     
    • Meknès-Tafilalet Region
      • Meknès Prefecture
        • Meknès
          • Mount Hammam
    Econ Geol (1989) 84:575-590
    New Zealand
     
    • South Island
      • Canterbury
    Journal of Metamorphic Geology Number 2: 103 - 266 (1996)
      • Otago
        • Dunedin
    Railton, G.L. & Watters, W.A., Minerals of New Zealand, New Zealand Geological Survey Bull. #104 (1990).
    Norway
     
    • Oslo
      • Årvoll (Årvold; Aarvold)
    Neumann, H. 1985: The minerals of Norway. Nor.geol.unders. Skr.68. 1-278
    Peru
     
    • Ancash Department
      • Bolognesi Province
    Min. Rec. 28, no. 4 (1997)
    Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.; Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254.
    • La Libertad Department
      • Santiago de Chuco Province
        • Quiruvilca District
    Min.Rec. 28, #4 (1997)
    • Lima Department
      • Oyon Province
    No reference listed
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
        • Dal'negorsk (Dalnegorsk; Tjetjuche; Tetjuche)
    [MinRec 32:9]
    [MinRec 32:9]
          • Dal'negorsk B deposit
    [MinRec 32:9]
    [MinRec 32:9]
          • Karadubsky ore field
    [MinRec 32:9]
          • Nikolaevskoe Pb-Zn-Ag deposit
    [MinRec 32:9]
    [MinRec 32:9]
    [MinRec 32:9]
    Slovakia
     
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
        • Gemerská Poloma
          • Šramky
    Ozdin D., Volek M., Števko M., 2006: Study of hydrotermal veins with axinites from the Western Carpathians. Acta Miner.-Petrograph.,Abstract Series 5, Szeged, p.87
    Sweden
     
    • Södermanland
      • Stockholm
        • Haninge
    No reference listed
    • Värmland
      • Filipstad
        • Nordmark
    Turkey
     
    • Aegean Region
      • Izmir Province
        • Izmir
          • Efemçukuru Au deposit
    Oyman, T., Minareci, F., and Pişkin, Ö. (2003): Ore Geology Reviews 23, 35-53.
    USA
     
    • Arizona
      • Graham Co.
        • Aravaipa District
          • Santa Teresa Mts
            • Aravaipa
              • Landsman Camp (Landsman group)
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 288; Reiter, B.E. (1981), Controls on lead-zinc skarn mineralization, Iron Cap mine area, Aravaipa district, Graham Co., AZ, in C. Stone and J.P. Jenney (editors), AZ Geol. Soc. Digest: 13: 117-125.; Grant, Raymond W., Bideaux, R.A., and Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 4.
      • Pima Co.
        • Tohono O'odom (Papago) Indian Reservation
          • Comobabi Mts
            • Kovaya Hills
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 179, 288; Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 328; Bideaux, R.A., et al (1960), Some new occurrences of minerals of AZ, AZ Geol. Soc. Digest: 3: 53-56.
    • California
      • El Dorado Co.
        • Fairplay District
    www.mineralsocal.org
      • San Bernardino Co.
        • Holcomb Valley
          • Fawnskin
    Rocks & Min.:61:33-34.
      • San Diego Co.
        • Ramona District
    [Foord et al, 1989 - "Mineralogy and paragenesis of the Little Three mine pegmatites", Mineralogical Record 20 101-127]
    • Nevada
      • Mineral Co.
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    Palache(1935):16 & 100; Dunn(1995):Pt1:133 & Pt3:417.
          • Ogdensburg
            • Sterling Hill
    Dunn(1995):Pt3:418.
    Leonard S.Wiener and Sigrid Ballew,1995, Updated by Kenny Gay,2006, A Listing Of North Carolina Minerals,Geologic Note No.4
      • Mitchell Co.
        • Spruce Pine District
          • Spruce Pine
    Mineral Data Publishing,Version #1, 2001-2005
    • Pennsylvania
      • Northampton Co.
        • Hanover Township
          • Campbell's Hump (Quaker Hill)
    Smith, R. C., 1978, The Mineralogy of Pennsylvania 1966 - 1975
    Smith, R. C. II, 1978, The Mineralogy of Pennsylvania 1966 - 1975
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.