Bystrite Mineral Data + Say BYSTRITE


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General Bystrite Information

Help on Chemical  Formula: Chemical Formula: (Na,K)7Ca(Si6Al6)O24S4.5·(H2O)
Help on Composition: Composition: Molecular Weight = 1,106.92 gm
   Potassium   6.36 %  K     7.66 % K2O
   Sodium     10.80 %  Na   14.56 % Na2O
   Calcium     3.62 %  Ca    5.07 % CaO
   Aluminum   14.14 %  Al   26.71 % Al2O3
   Silicon    15.73 %  Si   33.65 % SiO2
   Hydrogen    0.18 %  H     1.63 % H2O
   Sulfur     13.04 %  S    13.04 % S2-
                -   %  S    -6.50 % -O=S
   Oxygen     36.13 %  O
             ______        ______ 
             100.00 %       95.81 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na5.2K1.8CaSi6.2Al5.8O24S4.5·(H2O)
Help on Environment: Environment: In a lazurite deposit.
Help on IMA Status: IMA Status: Approved IMA 1991
Help on Locality: Locality: In the Malaya Bystraya lazurite deposit, south of Lake Baikal, Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: ICSD 39458
  IMA1990-008
  PDF 45-1373
 

Bystrite Image

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Bystrite   Lazulite

Comments: Brownish-yellow bystrite grains with blue lazulite in an igneous rock.
Location: Malo-Bystrinskoye lazurite deposit, Tunka Valley, Sludyanka, Lake Baikal Region, Russia. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Bystrite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.83236
Help on Cell Dimensions: Cell Dimensions: a = 12.855, c = 10.7, Z = 2; V = 1,531.29 Den(Calc)= 2.40
Help on Crystal System: Crystal System: Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: P 31c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.72(1), 3.313(0.9), 3.919(0.8),2.676(0.7), 4.824(0.7),
 

Physical Properties of Bystrite

Help on Cleavage: Cleavage: [1010] Good, [???] Poor
Help on Color: Color: Yellow.
Help on Density: Density: 2.43
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Habit: Habit: Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.
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: light yellow
 

Optical Properties of Bystrite

Help on Dichroism (e): Dichroism (e): colorless.
Help on Dichroism (w): Dichroism (w): deep yellow.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.39 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.407 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2592,KPDmeas= 0.256,KC= 0.1841
Help on Optical Data: Optical Data: Uniaxial (+), w=1.584, e=1.66, bire=0.0760.
 

Calculated Properties of Bystrite

Help on Electron Density: Electron Density:

relectron=2.40 gm/cc
note: rBystrite =2.43 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00855
Boson Index = 0.99145
Help on Photoelectric: Photoelectric:

PEBystrite = 2.97 barns/electron
U=PEBystrite x relectron= 7.14 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 90.74 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Bystrite - barely detectable

 

Bystrite Classification

Help on  Dana Class: Dana Class: 76.2.5.2 (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.09-45 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 Bystrite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(AntBidBlaNic2)
Help on See Also: See Also: Links to other databases for Bystrite :
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 - WWW-MINCRYST 14 -École des Mines de Paris

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Bystrite

(Na,K)7Ca(Si6Al6)O24S4.5·(H2O)
Dana No: 76.2.5.2 Strunz No: VIII/J.09-45
Locality:

 

Notes:

 

 
   
 
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