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Calcybeborosilite-(Y)

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Formula:
(Y,Ca)2(□,Fe2+)(B,Be)2[SiO4]2(OH,O)2
System:
Monoclinic
Name:
Named after it's composition of calcium, beryllium, boron and silicon.
Questionable member of the Gadolinite-Datolite Group.

Originally reported from Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mts, Region of Republican Subordination, Tajikistan.


Classification of Calcybeborosilite-(Y)

Notes:
Unnamed (probably valid)
Approval History:
Unnamed, but probably valid.
9.AJ.20

9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4

First Recorded Occurrence of Calcybeborosilite-(Y)

Crystallography of Calcybeborosilite-(Y)

Crystal System:
Monoclinic

Chemical Properties of Calcybeborosilite-(Y)

Formula:
(Y,Ca)2(□,Fe2+)(B,Be)2[SiO4]2(OH,O)2
Elements listed in formula:

Relationship of Calcybeborosilite-(Y) to other Species

Other Members of Group:
Gadolinite-(Ce)(Ce,La,Nd,Y)2Fe2+Be2Si2O10
Gadolinite-(Nd)Nd2Fe2+Be2O2(SiO4)2
Gadolinite-(Y)Y2Fe2+Be2Si2O10
Hingganite-(Ce)(Ce,REE)2(□,Fe2+)Be2[SiO4]2(OH)2
Hingganite-(Y)(Y,REE,Ca)2(□,Fe2+)Be2[SiO4]2(OH)2
Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
Minasgeraisite-(Y)CaBe2Y2Si2O10
9.AJ.05GrandidieriteMgAl3O2(BO3)SiO4
9.AJ.05OmineliteFe2+Al3O2(BO3)SiO4
9.AJ.10DumortieriteAlAl6BSi3O18
9.AJ.10Holtite(Ta0.60.4)Al6BSi3O18
9.AJ.10MagnesiodumortieriteMgAl6BSi3O17(OH)
9.AJ.15GarrelsiteNaBa3B7Si2O16(OH)4
9.AJ.20BakeriteCa4(H5B5Si3O20)
9.AJ.20DatoliteCaB(SiO4)(OH)
9.AJ.20Gadolinite-(Ce)Fe2+Be2Ce2(SiO4)2O2
9.AJ.20Gadolinite-(Y)Fe2+Be2Y2(SiO4)2O2
9.AJ.20Hingganite-(Ce)BeCe(SiO4)(OH)
9.AJ.20Hingganite-(Y)(Y,REE,Ca)2(□,Fe2+)Be2[SiO4]2(OH)2
9.AJ.20Hingganite-(Yb)BeYb(SiO4)(OH)
9.AJ.20HomiliteCa2Fe2+B2(SiO4)2O2
9.AJ.20Melanocerite-(Ce)Ce5(SiO4,BO4)3(OH,O)
9.AJ.20Minasgeraisite-(Y)CaBe2Y2(SiO4)2O2
9.AJ.25Stillwellite-(Ce)CeBSiO5
9.AJ.30Cappelenite-(Y)BaY6B6Si3O24F2
9.AJ.35Okanoganite-(Y)(Y,REE,Ca,Na,Th)16(Fe3+,Ti)(Si,B,P)10(O,OH)38F10
9.AJ.35Vicanite-(Ce)(Ca,Ce,La,Th)15As5+(As3+,Na)0.5Fe3+0.7Si6B4(O,F)47
9.AJ.35Hundholmenite-(Y)(Y,REE,Ca,Na)15(Al,Fe3+)Cax(As3+)1-x(Si,As5+)Si6B3(O,F)48
9.AJ.35Proshchenkoite-(Y)(Y,REE,Ca,Na,Mn)15CaFe2+(P,Si)Si6B3O34F14
9.AJ.40JadariteLiNaB3SiO7(OH)

Other Names for Calcybeborosilite-(Y)

Name in Other Languages:

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 Calcybeborosilite-(Y)

Reference List:
Soviet Physics - Crystallography 8 (1963), 539.

American Mineralogist 49 (1964), 443.

Mineralogical Magazine 39 (1974), 909.

Crystallography Reports 41 (1996), 217.

American Mineralogist 86 (2001), 1537.

Rastsvetaeva et al. (1996): Kristallografiya, 41, 2, 235-239.

Pekov, I. V. (1998): Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures Ltd., Moscow, 369 pp. (page 53).

Internet Links for Calcybeborosilite-(Y)

mindat.org URL:
http://www.mindat.org/min-6843.html
Please feel free to link to this page.

Localities for Calcybeborosilite-(Y)

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.
Tajikistan (FRL)
 
  • Region of Republican Subordination
    • Tien Shan Mtn
      • Alai Range (Alayskiy)
http://www.koeln.netsurf.de/~w.steffens/dara.htm; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Pautov L.A., Agakhanov A.A., Sokolova E.V., Hawthorne F., Karpenko V.Yu. (2011) Byzantievite, Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O21[(OH),F]43(H2O)1.5, a new mineral. New Data on Minerals 46:5-12
Mineral and/or Locality  
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