Mineralogy Database

Alloriite Mineral Data

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General Alloriite Information

Help on Chemical  Formula: Chemical Formula: Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O
Help on Composition: Composition: Molecular Weight = 4,362.65 gm
   Potassium   5.57 %  K     6.70 % K2O
   Sodium     10.10 %  Na   13.61 % Na2O
   Calcium     4.47 %  Ca    6.26 % CaO
   Aluminum   14.06 %  Al   26.57 % Al2O3
   Silicon    16.26 %  Si   34.79 % SiO2
   Hydrogen    0.24 %  H     2.11 % H2O
   Carbon      0.19 %  C     0.71 % CO2
   Sulfur      3.59 %  S     8.96 % SO3
   Chlorine    0.37 %  Cl    0.37 % Cl
                -   %   Cl   -0.08 % -O=Cl2   
   Oxygen     45.15 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na19.16K6.21Ca4.87Si25.26Al22.74O96(SO4)4.88(CO3)0.7Cl0.46(OH)0.76�4.73(H2O)
Help on Environment: Environment: Sabatino volcanic complex. Cancrinite group. Afghanite structure type.
Help on IMA Status: IMA Status: Approved IMA 2006 (Dana # Added)
Help on Locality: Locality: Monte Cavalluccio, Campagnano municipality, Roma province, Latium region, Italy Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Roberto Allori (1933*), Italian amateur mineralogist and collector, who found the mineral.
Help on Synonym: Synonym: IMA2006-020
 

Alloriite Image

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  Alloriite

Comments: Colorless alloriite prisms in vug.
Location: Monte Cavalluccio, near Campagnano di Roma, Rome, Latium, Italy. Scale: See Image.
© Rruff Database

Alloriite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.65529
Help on Cell Dimensions: Cell Dimensions: a = 12.892, c = 21.34, Z = 1; V = 3,071.61 Den(Calc)= 2.36
Help on Crystal System: Crystal System: Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: P 31c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.33(1), 4.85(0.9), 3.76(0.8),2.694(0.7), 3.68(0.7), 11.3(0.7), 2.795(0.6), 4.03(0.6),
 

Physical Properties of Alloriite

Help on Cleavage: Cleavage: {100} Imperfect
Help on Color: Color: Colorless.
Help on Density: Density: 2.35
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Alloriite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.211,KPDmeas= 0.2119,KC= 0.2052
Ncalc = 1.48
Help on Optical Data: Optical Data: Uniaxial (+), w=1.497, e=1.499, bire=0.0020.
 

Calculated Properties of Alloriite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.34 gm/cc
note: Specific Gravity of Alloriite =2.36 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0081685588
Boson Index = 0.9918314412
Help on Photoelectric: Photoelectric: PEAlloriite = 2.55 barns/electron
U=PEAlloriite x relectron= 5.96 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 79.52 (Gamma Ray American Petroleum Institute Units)
Concentration of Alloriite per GRapi unit = 1.26 (%)

Estimated Radioactivity from Alloriite - barely detectable

 

Alloriite Classification

Help on  Dana Class: Dana Class: 76.02.05.19 (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 Alloriite Information

Help on References: References: NAME( AmMin, v94:399) PHYS. PROP.(Geology of Ore Deposits, v49:752) OPTIC PROP.(Geology of Ore Deposits, v49:752)
Help on See Also: See Also: Links to other databases for Alloriite :
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 Alloriite Specimen Label here :

Alloriite

Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O
Dana No: 76.02.05.19 Strunz No: 09.FB.05
Locality:

 

Notes:

 

 
   
 


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