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Hyalotekite Mineral Data

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General Hyalotekite Information

Help on Chemical  Formula: Chemical Formula: (Ba,Pb,Ca,K)6(B,Si,Al)2(Si,Be)10O28(F,Cl)
Help on Composition: Composition: Molecular Weight = 1,474.06 gm
   Potassium   0.74 %  K     0.89 % K2O
   Barium     18.09 %  Ba   20.20 % BaO
   Sodium      0.13 %  Na    0.17 % Na2O
   Calcium     5.62 %  Ca    7.87 % CaO
   Magnesium   0.05 %  Mg    0.09 % MgO
   Manganese   0.23 %  Mn    0.29 % MnO
   Beryllium   0.27 %  Be    0.76 % BeO
   Aluminum    0.10 %  Al    0.18 % Al2O3
   Iron        0.05 %  Fe    0.07 % Fe2O3
   Copper      0.07 %  Cu    0.09 % CuO
   Silicon    18.57 %  Si   39.73 % SiO2
   Boron       1.17 %  B     3.77 % B2O3
   Lead       23.46 %  Pb   25.27 % PbO
   Chlorine    0.06 %  Cl    0.06 % Cl
                -   %   Cl   -0.01 % -O=Cl2   
   Oxygen     30.39 %  O
   Fluorine    1.00 %  F     1.00 % F
                -   %   F    -0.42 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.28Ba1.94Pb1.66Ca2.06Na0.08Mn2+0.06Mg0.03Cu0.01Fe3+0.01Al0.05Si0.19B1.59
Help on Environment: Environment: Remote structural kinship with that of gillespite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1877
Help on Locality: Locality: Langbanshyttan, Vermland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek "hyalos" and "tektos" owing to its property of forming a clear, colorless glass upon heating.
Help on Name Pronunciation: Name Pronunciation: Hyalotekite + Pronunciation Say HYALOTEKITE
Help on Synonym: Synonym: ICSD 31186
  PDF 19-572
 

Hyalotekite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0324:1:0.9417
Help on Cell Dimensions: Cell Dimensions: a = 11.31, b = 10.955, c = 10.317, Z = 2; alpha = 90.43°, beta = 90.02°, gamma = 90.16° V = 1,278.25 Den(Calc)= 3.83
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: I1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.45(1), 2.94(0.8), 3.53(0.8),
 

Physical Properties of Hyalotekite

Help on Cleavage: Cleavage: {???} Good, {???} Good
Help on Color: Color: White, Pearly gray.
Help on Density: Density: 3.81
Help on Diaphaneity: Diaphaneity: Translucent to subtranslucent
Help on Habit: Habit: Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luminescence: Luminescence: Fluorescent, Short UV=light brownish orange.
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: white
 

Optical Properties of Hyalotekite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.465 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.457 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2517,KPDmeas= 0.253,KC= 0.1728
Ncalc = 1.66
Help on Optical Data: Optical Data: Biaxial (+), a=1.963, b=1.963, g=1.966, bire=0.0030, 2V(Calc)=0, 2V(Meas)=small. Dispersion strong, r < v.
 

Calculated Properties of Hyalotekite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.50 gm/cc
note: Specific Gravity of Hyalotekite =3.83 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PEHyalotekite = 474.73 barns/electron
U=PEHyalotekite x relectron=1,663.17 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 9.80 (Gamma Ray American Petroleum Institute Units)
Concentration of Hyalotekite per GRapi unit = 10.20 (%)

Estimated Radioactivity from Hyalotekite - barely detectable

 

Hyalotekite Classification

Help on  Dana Class: Dana Class: 78.06.01.01 (78)Unclassified silicates
  (78.06)possible tectosilicates
  (78.06.01)Dana Group
 
78.06.01.01 Hyalotekite (Ba,Pb,Ca,K)6(B,Si,Al)2(Si,Be)10O28(F,Cl) I1 1
 
78.06.01.02 Kapitsaite-(Y)! (Ba,K,Pb,Na)4(Y,Ca,REE)2[Si8B2(B,Si)2O28F] I1 1
Help on  Strunz Class: Strunz Class: 09.CH.05 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CH -[Si4O12]8- 4-membered double rings
 
09.CH.05 Hyalotekite (Ba,Pb,Ca,K)6(B,Si,Al)2(Si,Be)10O28(F,Cl) I1 1
 
09.CH.05 Kapitsaite-(Y)! (Ba,K,Pb,Na)4(Y,Ca,REE)2[Si8B2(B,Si)2O28F] I1 1
 

Other Hyalotekite Information

Help on References: References: NAME( AmMin,v67:1020) PHYS. PROP.(AmMin,v67:1020) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Hyalotekite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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

Hyalotekite

(Ba,Pb,Ca,K)6(B,Si,Al)2(Si,Be)10O28(F,Cl)
Dana No: 78.06.01.01 Strunz No: 09.CH.05
Locality:

 

Notes:

 

 
   
 


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