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Hiortdahlite Mineral Data

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General Hiortdahlite Information

Help on Chemical  Formula: Chemical Formula: (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2
Help on Composition: Composition: Molecular Weight = 371.93 gm
   Sodium      5.56 %  Na    7.50 % Na2O
   Calcium    21.55 %  Ca   30.16 % CaO
   Yttrium     2.39 %  Y     3.04 % Y2O3
   Zirconium  14.72 %  Zr   19.88 % ZrO2
   Titanium    1.29 %  Ti    2.15 % TiO2
   Silicon    15.10 %  Si   32.31 % SiO2
   Hydrogen    0.05 %  H     0.48 % H2O
   Oxygen     32.69 %  O
   Fluorine    6.64 %  F     6.64 % F
                -   %   F    -2.80 % -O=F2    
             ______        ______ 
             100.00 %       99.35 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Na0.9Y0.1Zr0.6Ti0.1(Si2O7)F1.3O0.4(OH)0.2
Help on Environment: Environment: Rare mineral in alkalic rocks, their pegmatites and metamorphosed equivalents and miarolitic cavities in sanidinites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1889
Help on Locality: Locality: Mittel Aro, Lille Aro, and Stokko Islands, Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for prof. Thorstein Hallager Hiortdahl (1839-1925), Mineralogist of Christiania (now Olso), Norway.
Help on Name Pronunciation: Name Pronunciation: Hiortdahlite + Pronunciation Say HIORTDAHLITE
 

Hiortdahlite Image

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  Hiortdahlite

Comments: Yellow translucent crystals of hiortdahlite in syenite matrix.
Location: Norra Karr, Granna, Jonkoping, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hiortdahlite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0601:1:0.7109
Help on Cell Dimensions: Cell Dimensions: a = 10.93, b = 10.31, c = 7.33, Z = 4; alpha = 90.32°, beta = 109.03°, gamma = 90.08° V = 780.85 Den(Calc)= 3.16
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.87(1), 3(0.9), 3.28(0.45),
 

Physical Properties of Hiortdahlite

Help on Cleavage: Cleavage: {110} Distinct, {110} Distinct
Help on Color: Color: Brown, Colorless, Yellow brown, Honey yellow, Light yellow.
Help on Density: Density: 3.267
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white
 

Optical Properties of Hiortdahlite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.025 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2068,KPDmeas= 0.2,KC= 0.2051
Ncalc = 1.65 - 1.67
Help on Optical Data: Optical Data: Biaxial (+), a=1.639-1.658, b=1.643-1.664, g=1.646-1.671, bire=0.0070-0.0130, 2V(Calc)=80-86, 2V(Meas)=80. Dispersion r < v strong.
Help on Pleochroism (x): Pleochroism (x): nearly colorless.
Help on Pleochroism (y): Pleochroism (y): bright yellow.
Help on Pleochroism (z): Pleochroism (z): wine yellow.
 

Calculated Properties of Hiortdahlite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.07 gm/cc
note: Specific Gravity of Hiortdahlite =3.16 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEHiortdahlite = 25.99 barns/electron
U=PEHiortdahlite x rElectron Density= 79.79 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hiortdahlite is Not Radioactive
 

Hiortdahlite Classification

Help on  Dana Class: Dana Class: 56.02.04.07 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02)with cations in [4] and/or >[4] coordination
  (56.02.04)Cuspidine - Wohlerite group
 
56.02.04.01 Baghdadite Ca3(Zr,Ti)Si2O9 P 21/a 2/m
 
56.02.04.02 Burpalite Na2CaZrSi2O7F2 P 21/a 2/m
 
56.02.04.03 Cuspidine Ca4Si2O7(F,OH)2 P 21/c 2/m
 
56.02.04.04 Lavenite (Na,Ca)2(Mn,Fe)(Zr,Ti,Nb)Si2O7(O,OH,F) P 21/a 2/m
 
56.02.04.05 Wohlerite NaCa2(Zr,Nb)Si2O7(O,OH,F)2 P 21/m 2/m
 
56.02.04.06 Niocalite Ca14Nb2(Si2O7)4O6F2 Pa m
 
56.02.04.07 Hiortdahlite (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2 P1 1
 
56.02.04.08 Rosenbuschite (Ca,Na)3(Zr,Ti)Si2O8F P1 1
 
56.02.04.09 Hainite Na4Ca8(Ti,Zr,Mn,Fe)3Si8O28F8 P1 1
 
56.02.04.10 Janhaugite (Na,Ca)3(Mn,Fe)3(Ti,Zr,Nb)2Si4O15(OH,F,O)3 P 21/n 2/m
 
56.02.04.11 Jennite Ca9Si6O18(OH)6•8H2O P1 1
 
56.02.04.12 Komarovite (Ca,Mn)2(Nb,Ti)2Si2O7(O,F)2•3.5(H2O) Unk Ortho
 
56.02.04.13 Natrokomarovite* Na6CaNb6[Si4O12F2•4(H2O) C mmm 2/m 2/m 2/m
 
56.02.04.14 Suolunite Ca2Si2O5(OH)2•(H2O) F dd2 mm2
 
56.02.04.15 Mongolite Ca4Nb6Si5O24(OH)10•5(H2O) Unk Tetra
 
56.02.04.16 Kristiansenite! Ca2ScSn(Si2O7)(Si2O6OH) C1 1
 
56.02.04.17 Kochite! Na2(Na,Ca)4Ca4(Mn,Ca)2Zr2Ti2(Si2O7)4(O,F)4F4 P1 1
 
56.02.04.18 Marianoite! Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4 P 21 2/m
Help on  Strunz Class: Strunz Class: 09.BE.17 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BE -Si2O7 groups with additional anions;
 
09.BE.17 Baghdadite Ca3(Zr,Ti)Si2O9 P 21/a 2/m
 
09.BE.17 Janhaugite (Na,Ca)3(Mn,Fe)3(Ti,Zr,Nb)2Si4O15(OH,F,O)3 P 21/n 2/m
 
09.BE.17 Burpalite Na2CaZrSi2O7F2 P 21/a 2/m
 
09.BE.17 Cuspidine Ca4Si2O7(F,OH)2 P 21/c 2/m
 
09.BE.17 Hiortdahlite (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2 P1 1
 
09.BE.17 Lavenite (Na,Ca)2(Mn,Fe)(Zr,Ti,Nb)Si2O7(O,OH,F) P 21/a 2/m
 
09.BE.17 Niocalite Ca14Nb2(Si2O7)4O6F2 Pa m
 
09.BE.17 Normandite! NaCa(Mn,Fe)(Ti,Nb,Zr)Si2O7(O,F)2 P 21/a 2/m
 
09.BE.17 Wohlerite NaCa2(Zr,Nb)Si2O7(O,OH,F)2 P 21/m 2/m
 
09.BE.17 Marianoite! Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4 P 21 2/m
 

Other Hiortdahlite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic2)
Help on See Also: See Also: Links to other databases for Hiortdahlite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST

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

Hiortdahlite

(Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2
Dana No: 56.02.04.07 Strunz No: 09.BE.17
Locality:

 

Notes:

 

 
   
 


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