Biachellaite Mineral Data (original) (raw)

General Biachellaite Information

Help on Chemical Formula: Chemical Formula:

(Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O

Help on Composition: Composition:

Molecular Weight = 1,172.24 gm

Potassium 0.83 % K 1.00 % K2O

Sodium 9.32 % Na 12.56 % Na2O

Calcium 10.26 % Ca 14.35 % CaO

Aluminum 13.81 % Al 26.09 % Al2O3

Silicon 14.38 % Si 30.75 % SiO2

Hydrogen 0.21 % H 1.92 % H2O

Sulfur 5.47 % S 13.66 % SO3

Oxygen 45.72 % O

______ ______

100.00 % 100.34 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Na4.75Ca3K0.25Si6Al6O24(SO4)2(OH)0.5�(H2O)

Help on Environment: Environment:

Cancrinite group

Help on IMA Status: IMA Status:

Proposed IMA 2007

Help on Locality: Locality:

Biachella Valley, Sacrofano municipality, Rome province, Latium region, Italy Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Help on Synonym: Synonym:

IMA2007-044

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Biachellaite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:6.16471

Help on Cell Dimensions: Cell Dimensions:

a = 12.913, c = 79.605, Z = 16; V = 11,495.44 Den(Calc)= 2.71

Help on Crystal System: Crystal System:

Trigonal - PyramidalH-M Symbol (3) Space Group: P 3

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.72(1), 3.3(0.47), 11.07(0.19),3.576(0.18), 6.45(0.18), 3.22(0.16), 4.782(0.15), 3.469(0.14),

Optical Properties of Biachellaite

Help on Optical Data: Optical Data:

NCalc= 1.55 - from Gladstone-Dale relationship (KC = 0.2047) where Ncalc=Dcalc*KC+1

Calculated Properties of Biachellaite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.69 gm/cc
note: Specific Gravity of Biachellaite =2.71 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0074828146
Boson Index = 0.9925171854

Help on Photoelectric: Photoelectric:

PEBiachellaite = 2.78 barns/electron
U=PEBiachellaite x relectron= 7.48 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 11.95 (Gamma Ray American Petroleum Institute Units)
Concentration of Biachellaite per GRapi unit = 8.37 (%)

Estimated Radioactivity from Biachellaite - barely detectable

Biachellaite Classification

Help on Dana Class: Dana Class:

76.02.05.20 (76)Tectosilicate Al-Si Framework

(76.02)Feldspathoids and related species

(76.02.05)Cancrinite group

76.02.05.01 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3•(H2O) P 63/mmc, P 63mc, or P 62c Hex

76.02.05.02 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5•(H2O) P 31c 3m

76.02.05.03 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 63 6

76.02.05.04 Cancrisilite Na7Al5Si7O24(C03)•3(H2O) P 63 6

76.02.05.05 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 63/m 6/m

76.02.05.06 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O) P 321 3 2

76.02.05.07 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O P 31c 3m

76.02.05.08 Hydroxycancrinite Na4(AlSiO4)3(OH)•(H2O) P 63 6

76.02.05.09 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O) P 6m2 6 m2

76.02.05.10 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 6322 6 2 2

76.02.05.11 Pitiglianoite Na6K2Si6Al6O24(SO4)•2(H2O) P 63 6

76.02.05.12 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 63/m 6/m

76.02.05.13 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4•n(H2O) P 63/mmc ? 6/m 2/m 2/m

76.02.05.14 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl•(H2O) P 6222 6 2 2

76.02.05.15 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4•n(H2O) P 6322 6 2 2

76.02.05.16 Wenkite Ba4Ca6(Si,Al)20O39(OH)2(SO4)3•n(H2O)(?) P 62m 6 m2

76.02.05.17 Marinellite! [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2•6(H2O) P 31c or P 2c Trig

76.02.05.18 Farneseite! (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12•6(H2O) P 63/m 6/m 2/m 2/m

76.02.05.19 Alloriite! Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O P 31c 3m

76.02.05.20 Biachellaite (Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O P 3 3

76.02.05.21 IMA2008-006! [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33•4H2O P 3 3

76.02.05.22 Kyanoxalite! Na7(Al5-6Si6-7O24)(C2O4)0.5-1.0•5H2O P 63 6

76.02.05.23 IMA2008-065! (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) P 63 6

Help on Strunz Class: Strunz Class:

09.FB.05 09 - SILICATES (Germanates)

09.F - Tektosilicates without Zeolitic H2O

09.FB -Tektosilicates with additional anions

09.FB.05 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5•(H2O) P 31c 3m

09.FB.05 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3•(H2O) P 63/mmc, P 63mc, or P 62c Hex

09.FB.05 Cancrisilite Na7Al5Si7O24(C03)•3(H2O) P 63 6

09.FB.05 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 63 6

09.FB.05 Hydroxycancrinite Na4(AlSiO4)3(OH)•(H2O) P 63 6

09.FB.05 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O) P 321 3 2

09.FB.05 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O) P 6m2 6 m2

09.FB.05 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 63/m 6/m

09.FB.05 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O P 31c 3m

09.FB.05 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 63/m 6/m

09.FB.05 Pitiglianoite Na6K2Si6Al6O24(SO4)•2(H2O) P 63 6

09.FB.05 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 6322 6 2 2

09.FB.05 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4•n(H2O) P 6322 6 2 2

09.FB.05 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4•n(H2O) P 63/mmc ? 6/m 2/m 2/m

09.FB.05 Marinellite! [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2•6(H2O) P 31c or P 2c Trig

09.FB.05 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl•(H2O) P 6222 6 2 2

09.FB.05 IMA2008-065! (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) P 63 6

09.FB.05 Farneseite! (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12•6(H2O) P 63/m 6/m 2/m 2/m

09.FB.05 Biachellaite (Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O P 3 3

09.FB.05 IMA2008-006! [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33•4H2O P 3 3

09.FB.05 Alloriite! Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O P 31c 3m

Other Biachellaite Information

Help on See Also: See Also:

Links to other databases for Biachellaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Biachellaite Specimen Label here :

Biachellaite

(Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O
Dana No: 76.02.05.20 Strunz No: 09.FB.05
Locality:

Notes: