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Bityite

Formula:
CaLiAl
 
2
[(OH)
 
2
|BeAlSi
 
2
O
 
10
]
System:MonoclinicHardness:
This page provides mineralogical data about Bityite.

Classification of Bityite

IMA status:Approved
Strunz 8th edition ID:8/H.12-20
Nickel-Strunz 10th (pending) edition ID:9.EC.35

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
Dana 8th edition ID:71.2.2c.3

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers
Hey's CIM Ref.:16.1.15

16 : Silicates Containing Aluminum and other Metals
1 : Aluminosilicates of Li
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Type Occurrence of Bityite

Type Locality:Maharitra (Manitra), Sahatany Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar
Year of Discovery:1908

Physical Properties of Bityite

Hardness (Mohs):

Crystallography of Bityite

Crystal System:Monoclinic
Cell Parameters:a = 4.94Å, b = 8.69Å, c = 18.81Å
β = 90.08°
Ratio:a:b:c = 0.568 : 1 : 2.165
Unit Cell Volume:V 807.49 ų (Calculated from Unit Cell)

Optical Data of Bityite

Type:Biaxial (-)
RI values: nα = 1.651 nβ = 1.659 nγ = 1.661
2V:Measured: 35° to 52°, Calculated: 52°
Maximum Birefringence:δ = 0.010

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

Chemical Properties of Bityite

Formula:
CaLiAl
 
2
[(OH)
 
2
|BeAlSi
 
2
O
 
10
]
Essential elements:Al, Be, Ca, H, Li, O, Si
All elements listed in formula:Al, Be, Ca, H, Li, O, Si
Common Impurities:Fe,Mg,Na,K

Relationship of Bityite to other Species

Related to:
  • Mica Group
  • Related Minerals - Nickel-Strunz Grouping):
    9.EC.05Minnesotaite
    (Fe,Mg)
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.05Talc
    Mg
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.05Willemseite
    (Ni,Mg)
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.10Ferripyrophyllite
    Fe
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.10Pyrophyllite
    Al
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.15Boromuscovite
    KAl
     
    2
    [(OH)
     
    2
    |BSi
     
    3
    O
     
    10
    ]
    9.EC.15Celadonite
    K(Mg,Fe
    2+
     
    )(Fe
    3+
     
    ,Al)[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Chernykhite
    (Ba,Na)(V
    3+
     
    ,Al,Mg)
     
    2
    [(OH)
     
    2
    |(Si,Al)
     
    4
    O
     
    10
    ]
    9.EC.15Montdorite
    (K,Na)
     
    2
    (Fe
    2+
     
    ,Mn
    2+
     
    ,Mg)
     
    5
    [(OH,F)
     
    2
    |Si
     
    4
    O
     
    10
    ]
     
    2
    9.EC.15Muscovite
    KAl
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Nanpingite
    CsAl
     
    2
    [(OH,F)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Paragonite
    NaAl
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Roscoelite
    K(V,Al)
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Tobelite
    (NH
     
    4
    ,K)Al
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Aluminoceladonite
    K(Mg,Fe
    2+
     
    )(Al,Fe
    3+
     
    )[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Chromphyllite
    K(Cr,Al)
     
    2
    [(OH,F)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.15Ferro-aluminoceladonite
    K(Fe
    2+
     
    ,Mg)(Al,Fe
    3+
     
    )[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Ferroceladonite
    K(Fe
    2+
     
    ,Mg)(Fe
    3+
     
    ,Al)[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Chromceladonite
    K(Mg,Fe
    2+
     
    )(Cr,Al)[(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Tainiolite
    KLiMg
     
    2
    [F
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.15Ganterite
    (Ba,Na,K)(Al,Mg)
     
    2
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Annite
    KFe
    2+
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Biotite
    9.EC.20Ephesite
    NaLiAl
     
    2
    [(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Hendricksite
    K(Zn,Mg,Mn
    2+
     
    )
     
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Masutomilite
    (K,Rb)(Li,Mn
    3+
     
    ,Al)
     
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Norrishite
    KLiMn
    2+
    2
    [(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.20Phlogopite
    KMg
     
    3
    [(OH,F)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Polylithionite
    KLi
     
    2
    Al[(F,OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.20Preiswerkite
    NaMg
     
    2
    Al[(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Siderophyllite
    KFe
    2+
    2
    Al[(F,OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Tetra-ferriphlogopite
    KMg
     
    3
    [(OH,F)
     
    2
    |(Fe
    3+
     
    ,Al)Si
     
    3
    O
     
    10
    ]
    9.EC.20Wonesite
    (Na,K)(Mg,fe,Al)
     
    6
    (Al,Si)
     
    8
    O
     
    20
    (OH,F)
     
    4
    9.EC.20Zinnwaldite
    KLiFe
    2+
     
    Al[(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Eastonite
    KMg
     
    2
    Al[(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.20Tetraferriannite
    KFe
    2+
    3
    [(OH)
     
    2
    |(Fe
    3+
     
    ,Al)Si
     
    3
    O
     
    10
    ]
    9.EC.20Trilithionite
    K(Li,Al)
     
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Fluorannite
    KFe
    2+
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Shirokshinite
    KNaMg
     
    2
    [F
     
    2
    |Si
     
    4
    O
     
    10
    ]
    9.EC.20Shirozulite
    K(Mn
    2+
     
    ,Mg)
     
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Sokolovaite
    CsLi
     
    2
    AlSi
     
    4
    O
     
    10
    F
     
    2
    9.EC.20Aspidolite
    NaMg
     
    3
    [(OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.20Fluorophlogopite
    KMg
     
    3
    [(F,OH)
     
    2
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.25Brammallite
    Na
     
    0.65
    Al
     
    2.0
    ٱAl
     
    0.65
    Si
     
    3.35
    O
     
    10
    (OH)
     
    2
    9.EC.30Margarite
    CaAl
     
    2
    [(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.35Anandite
    (Ba,K)(Fe
    2+
     
    ,Mg)
     
    3
    [(O,OH)
     
    2
    |(Si,Al,Fe)
     
    4
    O
     
    10
    ]
    9.EC.35Clintonite
    Ca(Mg,Al)
     
    3
    [(OH)
     
    2
    |Al
     
    3
    SiO
     
    10
    ]
    9.EC.35Kinoshitalite
    (Ba,K)(Mg,Mn
    2+
     
    ,Al)
     
    3
    [(OH)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.35Ferrokinoshitalite
    (Ba,K)(Fe
    2+
     
    ,Mg)
     
    3
    [(OH,F)
     
    2
    |Al
     
    2
    Si
     
    2
    O
     
    10
    ]
    9.EC.35Oxykinoshitalite
    (Ba,K)(Mg,Ti,Fe
    3+
     
    ,Fe
    2+
     
    )
     
    3
    [(O,OH,F)
     
    2
    |(Si,Al)
     
    4
    O
     
    10
    ]
    9.EC.40Beidellite
    (Na,Ca
     
    0.5
    )
     
    0.3
    Al
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.40Kurumsakite
    (Zn,Ni,Cu)
     
    8
    Al
     
    8
    V
     
    2
    Si
     
    5
    O
     
    35
    ·27H
     
    2
    O (or near)
    9.EC.40Montmorillonite
    (Na,Ca)
     
    0.33
    (Al,Mg)
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.40Nontronite
    Na
     
    0.3
    Fe
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.40Volkonskoite
    Ca
     
    0.3
    (Cr,Mg,Fe)
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.40Yakhontovite
    (Ca,Na)
     
    0.5
    (Cu,Fe,Mg)
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ·3H
     
    2
    O
    9.EC.40Smectite
    9.EC.45Hectorite
    Na
     
    0.3
    (Mg,Li)
     
    3
    Si
     
    4
    O
     
    10
    (F,OH)
     
    2
    9.EC.45Saponite
    Ca
     
    0.25
    (Mg,Fe)
     
    3
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·nH
     
    2
    O
    9.EC.45Sauconite
    Na
     
    0.3
    Zn
     
    3
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.45Spadaite
    MgSiO
     
    2
    (OH)
     
    2
    ·H
     
    2
    O
    9.EC.45Stevensite
    (Ca,Na)
     
    x
    Mg
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.45Swinefordite
    Li(Al,Li,Mg)
     
    4
    (Si,Al)
     
    8
    O
     
    20
    ,(OH,F)
     
    4
    ·xH
     
    2
    O
    9.EC.45Zincsilite
    Zn
     
    3
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.45Ferrosaponite
    Ca
     
    0.3
    (Fe
    2+
     
    ,Mg,Fe
    3+
     
    )
     
    3
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.50Vermiculite
    (Mg,Fe,Al)
     
    3
    (Al,Si)
     
    4
    O
     
    10
    (OH)
     
    2
    ·4H
     
    2
    O
    9.EC.55Baileychlore
    (Zn,Fe,Al,Mg)
     
    6
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    8
    9.EC.55Chamosite
    (Fe
    2+
     
    ,Mg)
     
    5
    Al[(OH)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Clinochlore
    (Mg,Fe
    2+
     
    )
     
    5
    Al[(OH)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Cookeite
    LiAl
     
    4
    (Si
     
    3
    Al)O
     
    10
    (OH)
     
    8
    9.EC.55Franklinfurnaceite
    Ca
     
    2
    FeMn
     
    3
    MnZn
     
    2
    Si
     
    2
    O
     
    10
    (OH)
     
    8
    9.EC.55Gonyerite
    (Mn,Mg)
     
    5
    Fe(Si
     
    3
    Fe)O
     
    10
    (OH)
     
    8
    9.EC.55Nimite
    (Ni,Mg,Al)
     
    6
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    8
    9.EC.55Orthochamosite
    (Fe,Mg,Fe)
     
    5
    Al(Si
     
    3
    Al)O
     
    10
    (OH,O)
     
    8
    9.EC.55Pennantite
    (Mn
     
    5
    Al)(Si
     
    3
    Al)O
     
    10
    (OH)
     
    8
    9.EC.55Sudoite
    (Mg,Fe
    2+
     
    )
     
    2
    Al
     
    3
    [(OH)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Donbassite
    Al
     
    2
    [Al
     
    2.33
    ][Si
     
    3
    AlO
     
    10
    ](OH)
     
    8
    9.EC.55Glagolevite
    Na(Mg,Al)
     
    6
    [(OH,O)
     
    8
    |AlSi
     
    3
    O
     
    10
    ]
    9.EC.55Borocookeite
    Li
     
    1+3x
    Al
     
    4-x
    [(BSi
     
    3
    )O
     
    10
    ](OH)
     
    8
    [0.00 <= x <=0.33]
    9.EC.60Aliettite
    Ca
     
    0.2
    Mg
     
    6
    (Si,Al)
     
    8
    O
     
    20
    (OH)
     
    4
    ·4H
     
    2
    O
    9.EC.60Corrensite
    (Mg,Fe)
     
    9
    (Si,Al)
     
    8
    O
     
    20
    (OH)
     
    10
    ·nH
     
    2
    O
    9.EC.60Dozyite
    Mg
     
    7
    Al
     
    2
    [(OH)
     
    12
    |Al
     
    2
    Si
     
    4
    O
     
    15
    ]
    9.EC.60Hydrobiotite
    9.EC.60Karpinskite
    (Ni,Mg)
     
    2
    Si
     
    2
    O
     
    5
    (OH)
     
    2
    9.EC.60Kulkeite
    Mg
     
    8
    Al(AlSi
     
    7
    )O
     
    20
    (OH)
     
    10
    9.EC.60Lunijianlaite
    Li
     
    0.7
    Al
     
    6.2
    (Si
     
    7
    AlO
     
    20
    )(OH,O)
     
    10
    9.EC.60Rectorite
    (Na,Ca)Al
     
    4
    (Si,Al)
     
    8
    O
     
    20
    (OH)
     
    4
    ·2H
     
    2
    O
    9.EC.60Saliotite
    Li
     
    0.5
    Na
     
    0.5
    Al
     
    3
    Si
     
    3
    AlO
     
    10
    (OH)
     
    5
    9.EC.60Tosudite
    9.EC.60Brinrobertsite
    Na
     
    0.3
    Al
     
    4
    [(OH)
     
    2
    |Si
     
    4
    O
     
    10
    ]
     
    2
    · 3.5 H
     
    2
    O
    9.EC.65Macaulayite
    (Fe,Al)
     
    24
    Si
     
    4
    O
     
    43
    (OH)
     
    2
    9.EC.70Burckhardtite
    Pb
     
    2
    (Fe,Mn)AlTeO
     
    2
    Si
     
    3
    O
     
    10
    (OH)
     
    2
    ·H
     
    2
    O
    9.EC.75Ferrisurite
    (Pb,Ca)
     
    2-3
    (CO
     
    3
    )
     
    1.5-2
    (OH,F)
     
    0.5-1
    [(Fe,Al)
     
    2
    Si
     
    4
    O
     
    10
    (OH)
     
    2
    ]·nH
     
    2
    O
    9.EC.75Surite
    Pb(Pb,Ca)(CO
     
    3
    )
     
    2
    (Al,Fe,Mg)
     
    2
    (Si,Al)
     
    4
    O
     
    10
    (OH)
     
    2
    9.EC.75Niksergievite
    (Ba,Ca)
     
    2
    (Al,Si)
     
    7
    O
     
    10
    (CO
     
    3
    )(OH)
     
    6
    ·nH
     
    2
    O
    9.EC.80Kegelite
    Pb
     
    12
    (Zn,Fe)
     
    2
    Al
     
    4
    (SO
     
    4
    )
     
    4
    Si
     
    11
    O
     
    38
    or near
    Related Minerals - Hey's Index Grouping:
    16.1.1Petalite
    LiAlSi
     
    4
    O
     
    10
    16.1.2Spodumene
    LiAl[Si
     
    2
    O
     
    6
    ]
    16.1.3Eucryptite
    LiAl[SiO
     
    4
    ]
    16.1.4Virgilite
    LiAlSi
     
    2
    O
     
    6
    16.1.5Cookeite
    LiAl
     
    4
    (Si
     
    3
    Al)O
     
    10
    (OH)
     
    8
    16.1.6Bikitaite
    LiAlSi
     
    2
    O
     
    6
    ·H
     
    2
    O
    16.1.7Lunijianlaite
    Li
     
    0.7
    Al
     
    6.2
    (Si
     
    7
    AlO
     
    20
    )(OH,O)
     
    10
    16.1.8Swinefordite
    Li(Al,Li,Mg)
     
    4
    (Si,Al)
     
    8
    O
     
    20
    ,(OH,F)
     
    4
    ·xH
     
    2
    O
    16.1.9Holmquistite
    ☐[Li
     
    2
    ][Mg
     
    3
    Al
     
    2
    ][(OH)
     
    2
    |Si
     
    8
    O
     
    22
    ]
    16.1.13Clinoferroholmquistite
    [ ][Li
     
    2
    ][Fe
    2+
    3
    Al
     
    2
    ][(OH)
     
    2
    |Si
     
    8
    O
     
    22
    ]
    16.1.14Magnesioholmquistite
    16.1.16Sogdianite
    (K,Na)
     
    2
    (Li,Fe)
     
    3
    (Zr,Ti,Fe)Si
     
    12
    O
     
    30
    16.1.17Sugilite
    KNa
     
    2
    (Fe,Mn,Al)
     
    2
    Li
     
    3
    Si
     
    12
    O
     
    30

    Other Names for Bityite

    German names:
    Bityit
    Russian names:
    Битиит
    Spanish names:
    Bityita

    Other Information

    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 Bityite

    Reference List:Lacroix, A.(1908):"Sur une nouvelle espèce minérale (bityite) et sur les minéraux qu'elle accompagne dans les gisements tourmalinifères de Madagascar".Comptes rendus Acad.Sci. 146, 1367-1371.

    Lacroix, A.(1908): "Les mineraux des filons de pegmatite á tourmaline litique de Madagascar." Bull.Soc.Franc.Miner.B.31, 218-247
    Lacroix, A.(1922): "Minéralogie de Madagascar".Paris.Tome 1, 398-400 + planche 18.

    Strunz, H.(1956):"Bityit,ein Berylliumglimmer".Zeitschrift für Kristallographie, Bd 107, 325-330.

    Canadian Mineralogist (1998): 36: 905-912.

    Internet Links for Bityite

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    Localities for Bityite

    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.
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    (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.
    Germany
     
    • Bavaria
      • Lower Bavaria
        • Bavarian Forest
          • Tittling
            • Matzersdorf
            • Stützersdorf
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Ossola Valley
          • Vigezzo Valley
            • Orcesco
    Mattioli V. - La Vigezzite, nuovo minerale - Rivista Mineralogica Italiana, Milano, Vol. 1, Serie 2, fasc. 1, 1979
            • Trontano
    Mattioli V. (1987) - Novità mineralogiche in Val d'Ossola - Rivista Mineralogica Italiana, Milano, fasc. 1, pp.1-11
    Madagascar
     
    • Antananarivo Province
      • Vakinankaratra Region (Betafo - Antsirabé region)
        • Sahatany Pegmatite Field (Mt Bity (Ibity) area)
          • Sahatany Valley
    Ranorosoa, N.(1986): Etude mineralogiques des pegmatites du champ de la Sahatany, Madagascar
    Lefevre & Thomas (1998): Les pegmatites de la vallée de la Sahatany, Madagascar. La Règne Minéral, 19, 15-28
    Ranorosoa, N (1986) : Etude mineralogique des pegmatites du champ de la Sahatany, Madagscar. These de doctorat, Toulouse
    Lacroix,A.(1922): "Minéralogie de Madagascar".Paris.Tome 1, 398-400 + planche 18 / J. Behier (1960): Contribution à la Mineralogie de Madagascar. Ann.Geol.Mad. XXIX,
    J.Behier (1953): Les mineraux de la pegmatite de Manjaka, Vallee de la Sahatany. Arch.Serv.Geol.Mad. A.581.
    Pers.identification. K.E.Larsen 12/1993
    Russia
     
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Ekaterinburg (Sverdlovsk)
            • Malyshevo
    Sweden
     
    • Södermanland
      • Nynäshamn
    Nysten,P. & Gustafsson, L.(2006): I jakt på sällsynta mineral. Geologiskt forum nr 49, 22-25
    USA
     
    • Connecticut
      • Middlesex Co.
        • Portland
    Handbook of Mineralogy - Volume II - Silicates
    • New Mexico
      • Taos Co.
        • Picuris District
    Minerals of New Mexico 3rd ed.
    • North Carolina
      • Cleveland Co.
        • Kings Mountain District
    Jan H.Bernard and Jaroslav Hyrsl,2004,Minerals and their Localities, pg # 85
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon & Ida Ralph 1993-2008. 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.