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Boromuscovite

Formula:
KAl
 
2
[(OH)
 
2
|BSi
 
3
O
 
10
]
System:MonoclinicColour:White
Hardness:2½ - 3
This page provides mineralogical data about Boromuscovite.

Classification of Boromuscovite

IMA status:Approved
Strunz 8th edition ID:8/H.10-60
Nickel-Strunz 10th (pending) edition ID:9.EC.15

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

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers
Hey's CIM Ref.:17.5.7

17 : Silicates Containing other Anions
5 : Borosilicates
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Type Occurrence of Boromuscovite

Type Locality:Little Three Mine (Little 3), Ramona District, San Diego Co., California, USA
Year of Discovery:1991

Physical Properties of Boromuscovite

Lustre:Vitreous, Dull
Colour:White
Streak:White
Hardness (Mohs):2½ - 3

Crystallography of Boromuscovite

Crystal System:Monoclinic
Cell Parameters:a = 5.07Å, b = 8.77Å, c = 10.06Å
β = 101.31°
Ratio:a:b:c = 0.578 : 1 : 1.147
Unit Cell Volume:V 438.62 ų (Calculated from Unit Cell)

Optical Data of Boromuscovite

Type:Biaxial (-)
RI values: nα = 1.557 nβ = 1.587 nγ = 1.593
2V:Measured: 44° , Calculated: 46°
Maximum Birefringence:δ = 0.036

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

Chemical Properties of Boromuscovite

Formula:
KAl
 
2
[(OH)
 
2
|BSi
 
3
O
 
10
]
Essential elements:Al, B, H, K, O, Si
All elements listed in formula:Al, B, H, K, O, Si
Common Impurities:Ti,Fe,Mn,Mg,Ca,Li,Na,Cs,P

Relationship of Boromuscovite 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.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.20Lepidolite
    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.25Illite
    K
     
    0.65
    A
     
    2.0
    [][Al
     
    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.35Bityite
    CaLiAl
     
    2
    [(OH)
     
    2
    |BeAlSi
     
    2
    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:
    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
    ]
    17.5.8Poudretteite
    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
    Ca[BSiO
     
    4
    ]
     
    2
    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
    17.5.40Axinite-(Mn)
    Ca
     
    2
    Mn
    2+
     
    Al
     
    2
    [OH|BSi
     
    4
    O
     
    15
    ]
    17.5.41Axinite
    (Ca,Fe,Mn)Al
     
    2
    BSi
     
    4
    O
     
    15
    OH
    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 Boromuscovite

    Synonyms:
    IMA1989-027
    German names:
    Boromuscovit
    Russian names:
    Боромусковит
    Spanish names:
    Boromuscovita

    Polytypes for Boromuscovite

    Polytypes:
    Boromuscovite-1MBoromuscovite-2M1

    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 Boromuscovite

    Reference List:American Mineralogist (1991): 76: 1998-2002.

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

    Schreyer, W. and Jung, I. (1997) Boromuscovite, KAl2[AlSi3O10](OH)2: A high-pressure mineral. Abstract Supplement 1 Terra Nova: 9: 32-33.

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

    Jung, I. and Schreyer, W. (2002) Synthesis, properties and stability of end-member boromuscovite, KAl2[BSi3O10](OH)2. Contributions to Mineralogy and petrology: 143: 684-693; 144: 507.

    Internet Links for Boromuscovite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Boromuscovite in the Natural History Museum (London) online catalogue
  • Boromuscovite details from Handbook of Mineralogy (PDF)
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  • Localities for Boromuscovite

    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.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Vysočina Region
    • Novák, M.: Bór obsahující minerály z granitických pegmatitů moldanubika. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 164-169.
    Russia
     
    • Eastern-Siberi