Sacrofanite Mineral Data + Say SACROFANITE

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General Sacrofanite Information
Help on Chemical Formula: Chemical Formula: (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4·n(H2O)
Help on Composition: Composition: Molecular Weight = 1,168.52 gm
   Potassium   4.68 %  K     5.64 % K2O
   Sodium     12.39 %  Na   16.71 % Na2O
   Calcium     6.17 %  Ca    8.64 % CaO
   Aluminum   13.16 %  Al   24.87 % Al2O3
   Silicon    15.14 %  Si   32.39 % SiO2
   Hydrogen    0.28 %  H     2.54 % H2O
   Carbon      0.31 %  C     1.13 % CO2
   Sulfur      3.02 %  S     7.54 % SO3
   Chlorine    0.61 %  Cl    0.61 % Cl
                -   %  Cl   -0.14 % -O=Cl2
   Oxygen     44.23 %  O
             ______        ______ 
             100.00 %       99.93 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na6.3Ca1.8K1.4Si6.3Al5.7O24(OH)2.7(SO4)1.1(CO3)0.3Cl0.2·0.3(H2O)
Help on Environment: Environment: In a cavity of an ejecta block.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Mt. Sabatini, Sacrafano volcano area, Latium, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
 

Sacrofanite Image

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Sacrofanite

Comments: Translucent crystalline sacrofanite on diopside.
Location: Sacrofano Quarry, Rome, Lazio, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sacrofanite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:5.61523
Help on Cell Dimensions: Cell Dimensions: a = 12.865, c = 72.24, Z = 14; V = 10,354.47 Den(Calc)= 2.62
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc ?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.73(1), 3.483(0.43), 2.648(0.3),
 

Physical Properties of Sacrofanite

Help on Cleavage: Cleavage: [0001] Perfect, [0110] Perfect
Help on Color: Color: Colorless.
Help on Density: Density: 2.42
Help on Diaphaniety: Diaphaniety: Transparent
Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Sacrofanite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.082 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1891,KPDmeas= 0.2048,KC= 0.2061
Help on Optical Data: Optical Data: Uniaxial (-), e=1.486, w=1.505, bire=0.0190.
 

Calculated Properties of Sacrofanite

Help on Electron Density: Electron Density:

relectron=2.40 gm/cc
note: rSacrofanite =2.42 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.00763
Boson Index = 0.99237
Help on Photoelectric: Photoelectric:

PESacrofanite = 2.62 barns/electron
U=PESacrofanite x relectron= 6.28 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 66.93 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Sacrofanite - barely detectable

 

Sacrofanite Classification
Help on Dana Class: Dana Class: 76.2.5.13 (76)Tectosilicate Al-Si Framework
  (76.2)Feldspathoids and related species
  (76.2.5)Cancrinite group
 
76.2.5.1 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3·(H2O) P 63/mmc, P 63mc, or P 62c Hex
 
76.2.5.2 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5·(H2O) P 31c 3m
 
76.2.5.3 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 63 6
 
76.2.5.4 Cancrisilite Na7Al5Si7O24(C03)·3(H2O) P 63 6
 
76.2.5.5 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 63/m 6/m
 
76.2.5.6 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10·2(H2O) P 321 3 2
 
76.2.5.7 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2·5H2O P 31c 3m
 
76.2.5.8 Hydroxycancrinite Na4(AlSiO4)3(OH)·(H2O) P 63 6
 
76.2.5.9 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4·(H2O) P 6m2 6 m2
 
76.2.5.10 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 6322 6 2 2
 
76.2.5.11 Pitiglianoite Na6K2Si6Al6O24(SO4)·2(H2O) P 63 6
 
76.2.5.12 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 63/m 6/m
 
76.2.5.13 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4·n(H2O) P 63/mmc ? 6/m 2/m 2/m
 
76.2.5.14 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl·(H2O) P 6222 6 2 2
 
76.2.5.15 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4·n(H2O) P 6322 6 2 2
 
76.2.5.16 Wenkite Ba4Ca6(Si,Al)20O39(OH)2(SO4)3·n(H2O)(?) P 62m 6 m2
 
76.2.5.17 Marinellite! [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2·6(H2O) P 31c or P 2c Trig
 
76.2.5.18 IMA2004-043! (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12·6(H2O) P 63/m 6/m 2/m 2/m
Help on Strunz Class: Strunz Class: VIII/J.09-60 VIII - Silicates
  VIII/J - Tectosilicates (network) with anions unfamiliar to the tetraheders
  VIII/J.09 - Cancrinite group
 
VIII/J.09-05 Hydroxycancrinite Na4(AlSiO4)3(OH)·(H2O) P 63 6
 
VIII/J.09-10 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 63 6
 
VIII/J.09-15 Cancrisilite Na7Al5Si7O24(C03)·3(H2O) P 63 6
 
VIII/J.09-20 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 63/m 6/m
 
VIII/J.09-25 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 63/m 6/m
 
VIII/J.09-30 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 6322 6 2 2
 
VIII/J.09-40 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2·5H2O P 31c 3m
 
VIII/J.09-45 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5·(H2O) P 31c 3m
 
VIII/J.09-50 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3·(H2O) P 63/mmc, P 63mc, or P 62c Hex
 
VIII/J.09-55 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl·(H2O) P 6222 6 2 2
 
VIII/J.09-60 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4·n(H2O) P 63/mmc ? 6/m 2/m 2/m
 
VIII/J.09-65 Pitiglianoite Na6K2Si6Al6O24(SO4)·2(H2O) P 63 6
 
VIII/J.09-70 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4·n(H2O) P 6322 6 2 2
 
VIII/J.09-80 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10·2(H2O) P 321 3 2
 
VIII/J.09-90 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4·(H2O) P 6m2 6 m2
 
VIII/J.09-100 Wenkite Ba4Ca6(Si,Al)20O39(OH)2(SO4)3·n(H2O)(?) P 62m 6 m2
 

Other Sacrofanite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Sacrofanite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Sacrofanite

(Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4·n(H2O)
Dana No: 76.2.5.13 Strunz No: VIII/J.09-60
Locality:

 

Notes:

 
 
   
 
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