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Banalsite

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About BanalsiteHide

Formula:
Na2BaAl4Si4O16
Colour:
White
Lustre:
Pearly
Hardness:
6
Specific Gravity:
3.05 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
The name is derived from the chemical symbols of the elements in its composition: barium (Ba), sodium (Na), Aluminum (Al) and silicon (Si).
Feldspar Group.

Forms a solid-solution series with stronalsite.




Classification of BanalsiteHide

Approved, 'Grandfathered' (first described prior to 1959)
8/J.07-100
9.FA.60

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
76.1.6.1

76 : TECTOSILICATES Al-Si Framework
1 : Al-Si Framework with Al-Si frameworks
16.12.8

16 : Silicates Containing Aluminum and other Metals
12 : Aluminosilicates of Sr, Ba and Zn

Physical Properties of BanalsiteHide

Pearly
Transparency:
Transparent, Translucent
Comment:
cleavages show a good pearly lustre
Colour:
White
Streak:
White
Hardness:
Cleavage:
Distinct/Good
(110) and (001).
Density:
3.05 g/cm3 (Calculated)

Optical Data of BanalsiteHide

Type:
Biaxial (+)
RI values:
nα = 1.570(5) nβ = 1.571(5) nγ = 1.578(5)
2V:
Measured: 41° , Calculated: 52°
Max Birefringence:
δ = 0.008
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v

Chemical Properties of BanalsiteHide

Formula:
Na2BaAl4Si4O16
Idealised Formula:
BaNa2[Al2Si2O8]2
Common Impurities:
Mn,Mg,Ca,K

Crystallography of BanalsiteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Iba2
Cell Parameters:
a = 8.5400(7) Å, b = 10.0127(5) Å, c = 16.7897(14) Å
Ratio:
a:b:c = 0.853 : 1 : 1.677
Unit Cell V:
1,435.66 ų (Calculated from Unit Cell)
Twinning:
none
Comment:
Benallt

Occurrences of BanalsiteHide

Paragenetic Mode(s):

Type Occurrence of BanalsiteHide

Place of Conservation of Type Material:
National School of Mines, Paris, France; The Natural History Museum,
London, England, 1944,420{423; Harvard University, Cambridge, Massachusetts, 108656; National
Museum of Natural History, Washington, D.C., USA, 105854.
Associated Minerals at Type Locality:
Reference:
Smith W C, Bannister F A, Hey M H, Groves A W (1944) Banalsite, a new barium-feldspar from Wales. Mineralogical Magazine 27, 33-47

Other Language Names for BanalsiteHide

German:Banalsit
Spanish:Banalsita

Relationship of Banalsite to other SpeciesHide

Member of:
Other Members of this group:
AlbiteNa(AlSi3O8)Tric. 1
AmazoniteK(AlSi3O8)
Andesine(Na,Ca)[Al(Si,Al)Si2O8]Tric.
AnorthiteCa(Al2Si2O8)Tric. 1 : P1
Anorthoclase(Na,K)AlSi3O8Tric.
Buddingtonite(NH4)(AlSi3)O8Mon. 2 : P21
Bytownite(Ca,Na)[Al(Al,Si)Si2O8]Tric.
CelsianBa(Al2Si2O8)Mon. 2/m
DmisteinbergiteCa(Al2Si2O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m
HexacelsianBaAl2Si2O8Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
Hyalophane(K,Ba)[Al(Si,Al)Si2O8]Mon.
KokchetaviteK(AlSi3O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
KumdykoliteNa(AlSi3O8)Orth. mmm (2/m 2/m 2/m) : Pnnm
Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MicroclineK(AlSi3O8)Tric. 1
Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
OrthoclaseK(AlSi3O8)Mon. 2/m : B2/m
ParacelsianBa(Al2Si2O8)Mon.
ReedmergneriteNaBSi3O8Tric.
RubiclineRb(AlSi3O8)Tric.
SanidineK(AlSi3O8)Mon. 2/m : B2/m
SlawsoniteSr(Al2Si2O8)Mon.
StronalsiteNa2SrAl4Si4O16Orth.
SunstoneA variety of feldspar (microcline or oligoclase, more rarely labradorite) that has schiller, ...
SvyatoslaviteCa(Al2Si2O8)Orth.
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Banalsite associated with TilasiteCaMg(AsO4)F
1 photo of Banalsite associated with Ferri-winchite☐[CaNa][Mg4(Fe3+,Al)]Si8O22(OH)2
1 photo of Banalsite associated with CalciteCaCO3
1 photo of Banalsite associated with BarysilitePb8Mn2+[Si2O7]3

Related Minerals - Nickel-Strunz GroupingHide

9.FA.05KaliophiliteKAlSiO4Hex.
9.FA.05KalsiliteKAlSiO4Hex. 6 2 2 : P63 2 2
9.FA.05NephelineNa3K(Al4Si4O16)Hex. 6 : P63
9.FA.05Panunzite(K,Na)AlSiO4Hex. 6 : P63
9.FA.05Trikalsilite(K,Na)AlSiO4Hex.
9.FA.05Yoshiokaite(Ca,Na)[Al(Al,Si)O4]Trig. 3 : P3
9.FA.05MegakalsiliteKAlSiO4Hex. 6 : P63
9.FA.10MalinkoiteNaBSiO4Hex. 6 : P63
9.FA.15VirgiliteLiAlSi2O6Hex. 6 2 2 : P62 2 2
9.FA.25LisitsyniteKBSi2O6Orth. 2 2 2 : P2 2 2
9.FA.30AdulariaKAlSi3O8Mon.
9.FA.30Anorthoclase(Na,K)AlSi3O8Tric.
9.FA.30Buddingtonite(NH4)(AlSi3)O8Mon. 2 : P21
9.FA.30CelsianBa(Al2Si2O8)Mon. 2/m
9.FA.30Hyalophane(K,Ba)[Al(Si,Al)Si2O8]Mon.
9.FA.30MicroclineK(AlSi3O8)Tric. 1
9.FA.30OrthoclaseK(AlSi3O8)Mon. 2/m : B2/m
9.FA.30SanidineK(AlSi3O8)Mon. 2/m : B2/m
9.FA.30RubiclineRb(AlSi3O8)Tric.
9.FA.30MonalbiteNaAlSi3O8Mon. 2/m : B2/m
9.FA.35AlbiteNa(AlSi3O8)Tric. 1
9.FA.35Andesine(Na,Ca)[Al(Si,Al)Si2O8]Tric.
9.FA.35AnorthiteCa(Al2Si2O8)Tric. 1 : P1
9.FA.35Bytownite(Ca,Na)[Al(Al,Si)Si2O8]Tric.
9.FA.35Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
9.FA.35Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
9.FA.35ReedmergneriteNaBSi3O8Tric.
9.FA.40ParacelsianBa(Al2Si2O8)Mon.
9.FA.45SvyatoslaviteCa(Al2Si2O8)Orth.
9.FA.45KumdykoliteNa(AlSi3O8)Orth. mmm (2/m 2/m 2/m) : Pnnm
9.FA.50SlawsoniteSr(Al2Si2O8)Mon.
9.FA.55LisetiteCaNa2Al4Si4O16Orth.
9.FA.60StronalsiteNa2SrAl4Si4O16Orth.
9.FA.65DanburiteCaB2Si2O8Orth. mmm (2/m 2/m 2/m)
9.FA.65MaleeviteBaB2Si2O8Orth. mmm (2/m 2/m 2/m) : Pnma
9.FA.65PekoviteSrB2Si2O8
9.FA.70Lingunite(Na,Ca)AlSi3O8Tet. 4/m : I4/m
9.FA.75KokchetaviteK(AlSi3O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm

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

76.1.6.2StronalsiteNa2SrAl4Si4O16Orth.
76.1.6.3LisetiteCaNa2Al4Si4O16Orth.
76.1.6.4SvyatoslaviteCa(Al2Si2O8)Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.12.1StronalsiteNa2SrAl4Si4O16Orth.
16.12.2SlawsoniteSr(Al2Si2O8)Mon.
16.12.3BrewsteriteMon.
16.12.4CelsianBa(Al2Si2O8)Mon. 2/m
16.12.5ParacelsianBa(Al2Si2O8)Mon.
16.12.6CymriteBaAl2Si2(O,OH)8 · H2OMon.
16.12.7EdingtoniteBa[Al2Si3O10] · 4H2O
16.12.9Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2OMon. 2/m : P21/m
16.12.10Hyalophane(K,Ba)[Al(Si,Al)Si2O8]Mon.
16.12.11BalipholiteBaLiMg2Al3(Si2O6)2(OH)4Orth.
16.12.12ArmeniteBaCa2Al6Si9O30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnna
16.12.13Wellsite(K,Ba,Ca,K2)Al2Si6O16 · 6H2OMon. 2/m : P21/m
16.12.14Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2OOrth.
16.12.15Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
16.12.16Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4Mon.
16.12.17SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
16.12.18Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16Hex.
16.12.19HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2Mon. 2/m : B2/m
16.12.20Baileychlore(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8Tric. 1

Other InformationHide

Notes:
The mineral is decomposed by HCl
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 BanalsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 30: 85.
Mineralogical Journal: 7: 262-281.
Smith W C, Bannister F A, Hey M H, Groves A W (1944) Banalsite, a new barium-feldspar from Wales. Mineralogical Magazine 27, 33-47
Liferovich R P, Locock A J, Mitchell R H, Shpachenko A K (2006) The crystal structure of stronalsite and a redetermination of the structure of banalsite. The Canadian Mineralogist 44, 533-546
Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., & Shpachenko, A. K. (2006). Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44(4), 929-942.

Internet Links for BanalsiteHide

Localities for BanalsiteHide

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.
Canada
 
  • British Columbia
    • Golden Mining Division
Mark Mauthner Collection (Personally Collected); Dunning, G. E., Walstrom, R. E., & Lechner, W. (2018) Barium Silicate Mineralogy of the Western Margin, North American Continent, Part Geology, Origin, Paragenesis and Mineral Distribution from Baja California Norte, Mexico, Western Canada and Alaska, USA. Baymin Journal, Vol. 19, No. 5
  • Ontario
    • Thunder Bay District
      • Killala Lake Area
The Canadian Mineralogist Vol. 44, pp. 929-942 (2006)
Finland
 
  • Lapland
    • Ranua
Mutanen, T. 2011. Alkalikiviä ja appiniitteja. Raportti hankkeen " Magmatismi ja malminmuodostus II" toiminnasta 2002-2005.
Guatemala
 
  • Motagua Valley
Mikhail Ostrooumov and Alfredo Victoria Morales (2010) Mexican jadeite-bearing rock: a first mineralogical and gemmological approach. The Journal of Gemmology, Vol. 32, No. 1–4.
Japan
 
  • Niigata
Shi, G., Harlow, G. E., Wang, J., Wang, J., Ng, E., Wang, X., ... & Cui, W. (2012). Mineralogy of jadeitite and related rocks from Myanmar: a review with new data. European Journal of Mineralogy, 24(2), 345-370.; Miyajima H (2014) Jadeitite from Itoigawa, Niigata Prefecture, central Japan. 21 st meeting of the International Mineralogical Association. p 200
  • Tokyo
    • Nishitama district
      • Okutama-cho
Tokyo University collection; Matsubara S, Miyawaki R, Yokoyama K, Shimizu M, Imai H (2004) Tokyoite, Ba2Mn3+(VO4)2(OH), a new mineral from the Shiromaru mine, Okutama, Tokyo, Japan. Journal of Mineralogical and Petrological Sciences 99, 363-367
Myanmar
 
  • Kachin State
    • Mohnyin District (Moe Hnyin District)
      • Hpakant Township (Hpakan; Phakant; Phakan)
Shi, G., Harlow, G.E., Wang, J. Wang, J., Ng, E., Wang, X., Cao, G. & Cui, W. (2012): Mineralogy of jadeitite and related rocks from Myanmar:a review with new data. Eur. J. Mineral. 24, 345–370; Oberti, R., Boiocchi, M., Hawthorne, F. C., Ball, N. A., & Harlow, G. E. (2015): Katophorite from the Jade Mine Tract, Myanmar: mineral description of a rare (grandfathered) endmember of the amphibole supergroup. Mineralogical Magazine, 79, 355-363.
Ferraris, C., Parodi, G.C., Pont, S., Rondeau, B., Lorand, J.-P. (2014): Trinepheline and fabriesite: two new mineral species from the jadeite deposit of Tawmaw (Myanmar). European Journal of Mineralogy, 26, (in press).
Norway
 
  • Troms
    • Karlsøy
Bøe, P. (2000): En gang av alkaline bergarter i Mikkelvik, Ringvassøy i Troms. Norsk Bergverksmuseum Skrift. 17, 71-79
Russia
 
  • Irkutsk Oblast
P.M. Kartashov data; The Canadian Mineralogist Vol. 44, pp. 929-942 (2006)
  • Murmansk Oblast
Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., & Shpachenko, A. K. (2006). Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44(4), 929-942.
    • Khibiny Massif
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
Mikhailova, Y.A., Konopleva, N.G., Yakovenchuk, V.N., Ivanyuk, G.Y., Men’shikov, Y.P., and Pakhomovsky, Y.A. (2007): Geology of Ore Deposits 49(7), 590-598.
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
    • Turii Cape
Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., & Shpachenko, A. K. (2006). Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44(4), 929-942.
South Africa
 
  • North West
    • Bojanala Platinum District
The Canadian Mineralogist, V 42, 2004, pp. 1169-1178.; Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., & Shpachenko, A. K. (2006). Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44(4), 929-942.
  • Northern Cape
Cairncross/Dixon, 1995. Minerals of South Africa
      • Black Rock
South African Micromount Society, Kalahari Manganese Fields - KMF, by Dixon, R., and Bezing, L. Von., (1989) Locality datasheet ML 02
      • Hotazel
South African Micromount Society, Kalahari Manganese Fields - KMF, by Dixon, R., and Bezing, L. Von., (1989) Locality datasheet ML 02
Minerals of South Africa
Sweden
 
  • Örebro County
    • Hällefors
      • Grythyttan
Ulf Nyberg photo & specimen
  • Värmland County
    • Filipstad
Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183. ; Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., & Shpachenko, A. K. (2006). Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44(4), 929-942.
UK (TL)
 
  • Wales
    • Gwynedd
      • Lleyn Peninsula
        • Llanfaelrhys
          • Rhiw
UK Journal of mines & Minerals, 29, 47-48; Mineralogical Magazine(1944) 27, 33-48;; Liferovich, R. P., Mitchell, R. H., Zozulya, D. R., & Shpachenko, A. K. (2006). Paragenesis and composition of banalsite, stronalsite, and their solid solution in nepheline syenite and ultramafic alkaline rocks. The Canadian Mineralogist, 44(4), 929-942.
USA
 
  • California
    • San Benito Co.
      • Diablo Range
        • New Idria Mining District
          • Santa Rita Peak
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 362.
 
Mineral and/or Locality  
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