Wadalite Mineral Data (original) (raw)
General Wadalite Information
Chemical Formula:
Ca6Al5Si2O16Cl3
Composition:
Molecular Weight = 795.48 gm
Calcium 30.23 % Ca 42.30 % CaO
Magnesium 1.83 % Mg 3.04 % MgO
Aluminum 11.19 % Al 21.15 % Al2O3
Iron 2.11 % Fe 3.01 % Fe2O3
Silicon 9.53 % Si 20.39 % SiO2
Chlorine 12.92 % Cl 12.92 % Cl
Oxygen 32.18 % O
______ ______
100.00 % 99.90 % = TOTAL OXIDE
Empirical Formula:
Ca6Al3.3Fe3+0.3Mg0.6Si2.7O16Cl2.9
Environment:
Skarn xenolith in two-pyroxene andesite.
IMA Status:
Approved IMA 1993
Locality:
Tadano, Koriyama Cith, Fukushima Prefecture, Japan. Link to MinDat.org Location Data.
Name Origin:
Named for Tsunashiro Wada (1856-1920), first Director General of the Geological Survey of Japan.
Name Pronunciation:
Wadalite 
Synonym:
ICSD 72504
IMA1987-045
PDF 81-1135
Wadalite Image
Images:
Images:
 |
Wadalite Kumtyubeite Srebrodolskite Rondorfite Comments: BSE image of kumtyubeite (Kmt) associated with srebrodolskite (Srb), bultfonteinite (Blt), Ca- kydrosilicates, wadalite (Wad), rondorfite (Rndr), and ettringite (dark gray). (AmMin, v94:1361). Location: Rock-forming mineral found in skarn carbonate-xenoliths in ignimbrites of the Upper Chegem volcanic structure, Kabardino-Balkaria, Northern Caucasus, Russia.Scale: See Image. © American Mineralogist |
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Wadalite Crystallography
Cell Dimensions:
a = 12.014, Z = 4; V = 1,734.06 Den(Calc)= 3.05
Crystal System:
Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: I 43d
X Ray Diffraction:
By Intensity(I/Io): 2.686(1)(420), 3.003(0.42)(400), 2.452(0.39)(422),1.665(0.25)(640), 2.335(0.18)(510), 2.193(0.17)(521), 4.903(0.16)(211),
Crystal Structure:
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| | Tsukimura K , Kanazawa Y , Aoki M , Bunno M , Acta Crystallographica, Section C , 49 (1993) p.205-207, Structure of wadalite Ca6Al5Si2O16Cl3, Note: the values for the anisoU s are from ICSD | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
Physical Properties of Wadalite
Color:
Colorless, Colorless.
Density:
3.06
Diaphaneity:
Transparent
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Wadalite
Gladstone-Dale:
CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2321,KPDmeas= 0.2314,KC= 0.2314
Ncalc = 1.71
Optical Data:
Isotropic, n=1.708.
Calculated Properties of Wadalite
Electron Density:
Bulk Density (Electron Density)=3.02 gm/cc
note: Specific Gravity of Wadalite =3.06 gm/cc.
Fermion Index:
Fermion Index = 0.007294096
Boson Index = 0.992705904
Photoelectric:
PEWadalite = 5.93 barns/electron
U=PEWadalite x rElectron Density= 17.92 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wadalite is Not Radioactive
Wadalite Classification
Dana Class:
51.04.05.01 (51)Nesosilicate Insular SiO4 Groups Only
(51.04)with cations in [6] and >[6] coordination
(51.04.05)Dana Group
51.04.05.01 Wadalite Ca6Al5Si2O16Cl3 I 43d 4 3m
Strunz Class:
09.AD.25 09 - SILICATES (Germanates)
09.A - Nesosilicates
09.AD -Nesosilicates without additional anions;
09.AD.25 Almandine Fe3Al2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Calderite (Mn,Ca)3(Fe,Al)2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Andradite Ca3Fe2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Goldmanite Ca3(V,Al,Fe)2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Hibschite Ca3Al2(SiO4)3-x(OH)4x(x=0.2-1.5) I a3d 4/m 3 2/m
09.AD.25 Knorringite Mg3Cr2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Grossular Ca3Al2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Henritermierite Ca3(Mn,Al)2(SiO4)2(OH)4 I 41/acd 4/m 2/m 2/m
09.AD.25 Katoite Ca3Al2(SiO4)3-x(OH)4xx=1.5-3 I a3d 4/m 3 2/m
09.AD.25 Majorite Mg3(Fe,Al,Si)2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe)3O12 I a3d 4/m 3 2/m
09.AD.25 Morimotoite Ca3TiFeSi3O12 I a3d 4/m 3 2/m
09.AD.25 Pyrope Mg3Al2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Spessartine Mn3Al2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Schorlomite Ca3(Ti,Fe,Al)2[(Si,Fe,Fe)O4]3 I a3d 4/m 3 2/m
09.AD.25 Uvarovite Ca3Cr2(SiO4)3 I a3d 4/m 3 2/m
09.AD.25 Wadalite Ca6Al5Si2O16Cl3 I 43d 4 3m
09.AD.25 Holtstamite! Ca3(Al,Mn)2(SiO4)2(OH)4 I 41/acd 4/m 2/m 2/m
Other Wadalite Information
References:
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.78,p1317,1993) OPTIC PROP.(AmMin)
See Also:
Links to other databases for Wadalite :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST
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Print or Cut-and-Paste your Wadalite Specimen Label here :
Wadalite
Ca6Al5Si2O16Cl3
Dana No: 51.04.05.01 Strunz No: 09.AD.25
Locality:
Notes: