Mineralogy Database

Wadeite Mineral Data

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General Wadeite Information

Help on Chemical  Formula: Chemical Formula: K2ZrSi3O9
Help on Composition: Composition: Molecular Weight = 397.67 gm
   Potassium  19.66 %  K    23.69 % K2O
   Zirconium  22.94 %  Zr   30.99 % ZrO2
   Silicon    21.19 %  Si   45.33 % SiO2
   Oxygen     36.21 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2ZrSi3O9
Help on Environment: Environment: Leucite-bearing volcanic rocks, carbonitite veins and nepheline syenite pegmatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1939
Help on Locality: Locality: Wolgidee Hills, West Kimberly area, WA, Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Arthur Wade (1878-1951), Australian geologist who collected the mineral.
Help on Name Pronunciation: Name Pronunciation: Wadeite Say WADEITE
Help on Synonym: Synonym: ICSD 200082
  PDF 43-231

Wadeite Image

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Comments: Sharp hexagonal crystal of wadeite with included dark green aegirine.
Location: Mt. Kukisvumchurr, Khibiny Massif (Russia). Scale: 12x10x6 mm.
© Richard Dale / Dale Minerals

Wadeite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.47569
Help on Cell Dimensions: Cell Dimensions: a = 6.893, c = 10.172, Z = 2; V = 418.56 Den(Calc)= 3.16
Help on Crystal System: Crystal System: Hexagonal - Dipyramidal H-M Symbol (6/m) Space Group: P 63/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.85(1), 3.85(0.8), 5.97(0.6),

Physical Properties of Wadeite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, Violet, Light lilac, Pink.
Help on Density: Density: 3.1 - 3.13, Average = 3.11
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
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: Adamantine
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white

Optical Properties of Wadeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.002 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2027,KPDmeas= 0.2056,KC= 0.2061
Ncalc = 1.64 - 1.65
Help on Optical Data: Optical Data: Uniaxial (+), w=1.624-1.627, e=1.653-1.658, bire=0.0290-0.0310.

Calculated Properties of Wadeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.01 gm/cc
note: Specific Gravity of Wadeite =3.12 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEWadeite = 33.37 barns/electron
U=PEWadeite x relectron= 100.38 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 273.96 (Gamma Ray American Petroleum Institute Units)
Concentration of Wadeite per GRapi unit = 0.37 (%)

Estimated Radioactivity from Wadeite - barely detectable


Wadeite Classification

Help on  Dana Class: Dana Class: (59)Cyclosilicate Three-Membered Rings
  (59.01)anhydrous, no other anions
  (59.01.01)Benitoite group Bazirite BaZrSi3O9 P 6m2 6 m2 Benitoite BaTiSi3O9 P 6c2 6 m2 Pabstite Ba(Sn,Ti)Si3O9 P 6c2 6 m2 Wadeite K2ZrSi3O9 P 63/m 6/m
Help on  Strunz Class: Strunz Class: 09.CA.10 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CA -[Si3O9]6- 3-membered single rings (dreier-Einfachringe),
09.CA.10 Wadeite K2ZrSi3O9 P 63/m 6/m

Other Wadeite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Wadeite :
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

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Dana No: Strunz No: 09.CA.10





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