Kimzeyite Mineral Data
General Kimzeyite Information
Chemical Formula:
Ca3(Zr,Ti)2(Si,Al,Fe+++)3O12
Composition:
Molecular Weight = 564.59 gm
Calcium 21.30 % Ca 29.80 % CaO
Zirconium 24.24 % Zr 32.74 % ZrO2
Titanium 4.24 % Ti 7.07 % TiO2
Aluminum 4.30 % Al 8.13 % Al2 O3
Iron 2.97 % Fe 4.24 % Fe2 O3
Silicon 8.95 % Si 19.16 % SiO2
Oxygen 34.01 % O
______ ______
100.00 % 101.13 % = TOTAL OXIDE
Empirical Formula:
Ca3 Zr1.5 Ti0.5 Si1.8 Al0.9 Fe3+ 0.3 O12
Environment:
Ultra-mafic lamprphyre dikes and carbonatite intrusive rocks.
IMA Status:
Approved IMA 1961
Locality:
Occurs in the carbonatite at the Kimzey family farm, Magnet Cove, Arkansas. Link to MinDat.org Location Data.
Name Origin:
Named for the Kimzey family, long associated with the mineralogy at Magnet Cove, Arkansas.
Name Pronunciation:
Kimzeyite + Pronunciation
Synonym:
ICSD 100258
PDF 13-130
Kimzeyite Image
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Kimzeyite Crystallography
Cell Dimensions:
a = 12.46, Z = 8; V = 1,934.44 Den(Calc)= 3.88
Crystal System:
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
X Ray Diffraction:
By Intensity(I/Io ): 1.667(1), 2.539(0.9), 2.79(0.8),
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Physical Properties of Kimzeyite
Cleavage:
None
Color:
Dark brown.
Density:
4
Diaphaneity:
Transparent to Subopaque
Hardness:
7 - Quartz
Luster:
Vitreous (Glassy)
Streak:
light brown
Optical Properties of Kimzeyite
Gladstone-Dale:
CI meas = -0.024 (Excellent) - where the CI = (1-KPDmeas /KC ) CI calc = -0.056 (Good) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2423,KPDmeas = 0.235,KC = 0.2295 Ncalc = 1.89 - 1.92
Optical Data:
Isotropic, n=1.94.
Calculated Properties of Kimzeyite
Electron Density:
Bulk Density (Electron Density)=3.85 gm/cc note: Specific Gravity of Kimzeyite =4.00 gm/cc.
Fermion Index:
Fermion Index = 0.03 Boson Index = 0.97
Photoelectric:
PEKimzeyite = 37.14 barns/electronU=PEKimzeyite x r Electron Density= 142.98 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Kimzeyite is Not Radioactive
Kimzeyite Classification
Dana Class:
51.04.03c.02 (51) Nesosilicate Insular SiO4 Groups Only
(51.04) with cations in [6] and >[6] coordination
(51.04.03c) Garnet group (Schorlomite - Kimzeyite series)
51.04.03c.01 Schorlomite Ca3(Ti,Fe,Al)2[(Si,Fe,Fe)O4]3 I a3d 4/m 3 2/m
51.04.03c.02 Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe)3O12 I a3d 4/m 3 2/m
51.04.03c.03 Morimotoite Ca3TiFeSi3O12 I a3d 4/m 3 2/m
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 4 3d 4 3m
09.AD.25 Holtstamite ! Ca3(Al,Mn)2(SiO4)2(OH)4 I 41 /acd 4/m 2/m 2/m
Other Kimzeyite Information
References:
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Kimzeyite :
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 Kimzeyite Specimen Label here :
Kimzeyite
Ca3(Zr,Ti)2(Si,Al,Fe+++)3O12
Dana No: 51.04.03c.02 Strunz No: 09.AD.25
Locality:
Notes:
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