Kimzeyite
A valid IMA mineral species
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About Kimzeyite
Formula:
Ca3Zr2(SiO4)(AlO4)2
Colour:
Dark brown
Lustre:
Vitreous
Hardness:
7
Specific Gravity:
4.0
Crystal System:
Isometric
Member of:
Unique Identifiers
Mindat ID:
2209
Long-form identifier:
mindat:1:1:2209:1
IMA Classification of Kimzeyite
Approved
IMA Formula:
Ca3Zr4+2(Al2Si)O12
First published:
1961
Classification of Kimzeyite
9.AD.25
9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
51.4.3c.2
51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
16.14.9
16 : Silicates Containing Aluminum and other Metals
14 : Aluminosilicates of Ti, Zr, Sn and Pb
16 : Silicates Containing Aluminum and other Metals
14 : Aluminosilicates of Ti, Zr, Sn and Pb
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Kmz | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Kmz | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Kimzeyite
Vitreous
Transparency:
Transparent
Colour:
Dark brown
Streak:
Light brown
Hardness:
7 on Mohs scale
Density:
4.0 g/cm3 (Measured) 4.03 g/cm3 (Calculated)
Optical Data of Kimzeyite
Type:
Isotropic
RI values:
n = 1.94(1)
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Chemistry of Kimzeyite
Mindat Formula:
Ca3Zr2(SiO4)(AlO4)2
Element Weights:
Common Impurities:
Nb,Mg
Chemical Analysis
Oxide wt%:
| 1 | |
|---|---|
| SiO2 | 19.68 % |
| TiO2 | 10.01 % |
| Al2O3 | 8.13 % |
| Fe2O3 | 6.48 % |
| MnO | 0.06 % |
| MgO | 1.52 % |
| CaO | 31.73 % |
| Cr2O3 | 1.87 % |
| ZrO2 | 18.41 % |
| Total: | 97.89 % |
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | Ca3.0(Zr0.81?Ti0.68?Fe3+0.44?Cr0.13?Al0.87?)( Si1.78?O4?)( Al1.22?O4?) |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Flekkeren, Skien, Telemark, Norway | EMPA analysed garnet from a contact metamorphic limestone. |
Crystallography of Kimzeyite
Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Ia3d
Setting:
Ia3d
Cell Parameters:
a = 12.46 Å
Unit Cell V:
1,934.43 ų (Calculated from Unit Cell)
Z:
8
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0006893 | Kimzeyite | Schingaro E, Scordari F, Capitanio F, Parodi G, Smith D C, Mottana A (2001) Crystal chemistry of kimzeyite from Anguillara, Mts. Sabatini, Italy European Journal of Mineralogy 13 749-759 | 2001 | Anguillara, Mts. Sabatini, Italy | 0 | 293 | |
| 0006892 | Kimzeyite | Schingaro E, Scordari F, Capitanio F, Parodi G, Smith D C, Mottana A (2001) Crystal chemistry of kimzeyite from Anguillara, Mts. Sabatini, Italy European Journal of Mineralogy 13 749-759 | 2001 | Anguillara, Mts. Sabatini, Italy | 0 | 293 | |
| 0000775 | Kimzeyite | Munno R, Rossi G, Tadini C (1980) Crystal chemistry of kimzeyite from Stomboli, Aeolian Islands, Italy American Mineralogist 65 188-191 | ![]() | 1980 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Loading XRD data...
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 1.667 Å | (100) |
| 2.539 Å | (90) |
| 2.79 Å | (80) |
| 3.12 Å | (60) |
| 4.42 Å | (40) |
| 1.728 Å | (40) |
| 1.395 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 36 : Carbonatites, kimberlites, and related igneous rocks |
Type Occurrence of Kimzeyite
General Appearance of Type Material:
Dodecahedra modified by trapezohedra, up to 5 mm.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 117124.
Geological Setting of Type Material:
Carbonatite.
Associated Minerals at Type Locality:
Other Language Names for Kimzeyite
Relationship of Kimzeyite to other Species
Member of:
Other Members of Schorlomite Group:
| Hutcheonite | Ca3Ti2(SiO4)(AlO4)2 | Iso. m3m(4/m32/m) : Ia3d |
| Irinarassite | Ca3Sn2(SiO4)(AlO4)2 | Iso. m3m(4/m32/m) : Ia3d |
| Kerimasite | Ca3Zr2(SiO4)(Fe3+O4)2 | Iso. m3m(4/m32/m) : Ia3d |
| Schorlomite | Ca3Ti2(SiO4)(Fe3+O4)2 | Iso. m3m(4/m32/m) : Ia3d |
| Toturite | Ca3Sn2(SiO4)(Fe3+O4)2 | Iso. m3m(4/m32/m) : Ia3d |
Common Associates
Associations Based on Photo Data:
| 6 photos of Kimzeyite associated with Perovskite | CaTiO3 |
| 6 photos of Kimzeyite associated with Baddeleyite | ZrO2 |
| 5 photos of Kimzeyite associated with Calcite | CaCO3 |
| 5 photos of Kimzeyite associated with Magnetite | Fe2+Fe3+2O4 |
| 2 photos of Kimzeyite associated with Monticellite | CaMg(SiO4) |
| 2 photos of Kimzeyite associated with 'Apatite' | Ca5(PO4)3A |
| 1 photo of Kimzeyite associated with 'Dysanalyte' | CaTiO3 |
| 1 photo of Kimzeyite associated with Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| 1 photo of Kimzeyite associated with Aegirine | NaFe3+Si2O6 |
| 1 photo of Kimzeyite associated with 'Carbonatite' |
Related Minerals - Strunz-mindat Grouping
| 9.AD. | Adrianite | Ca12(Al4Mg3Si7)O32Cl6 |
| 9.AD.05 | Larnite | Ca2SiO4 |
| 9.AD.10 | Calcio-olivine | Ca2SiO4 |
| 9.AD.15 | Merwinite | Ca3Mg(SiO4)2 |
| 9.AD.20 | Bredigite | Ca7Mg(SiO4)4 |
| 9.AD.25 | Midbarite | Ca3Mg2(V5+2Si)O12 |
| 9.AD.25 | Menzerite-(Y) | (Y2Ca)Mg2(SiO4)3 |
| 9.AD.25 | Uvarovite | Ca3Cr3+2(SiO4)3 |
| 9.AD.25 | Eltyubyuite | Ca12Fe3+10Si4O32Cl6 |
| 9.AD.25 | Eringaite | Ca3Sc2(SiO4)3 |
| 9.AD.25 | Henritermierite | Ca3Mn3+2(SiO4)2[◻(OH)4] |
| 9.AD.25 va | 'Hydrougrandite' | (Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2] |
| 9.AD.25 | Calderite | Mn2+3Fe3+2(SiO4)3 |
| 9.AD.25 | Nikmelnikovite | Ca12(Fe2+Fe3+3Al3◻)[SiO4]6[◻(OH)4]5◻4 |
| 9.AD.25 | Hutcheonite | Ca3Ti2(SiO4)(AlO4)2 |
| 9.AD.25 | Wadalite | (Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3 |
| 9.AD.25 | Rubinite | Ca3Ti3+2(SiO4)3 |
| 9.AD.25 | Kerimasite | Ca3Zr2(SiO4)(Fe3+O4)2 |
| 9.AD.25 | Holtstamite | Ca3Al2(SiO4)2[◻(OH)4] |
| 9.AD.25 | Spessartine | Mn2+3Al2(SiO4)3 |
| 9.AD.25 | Toturite | Ca3Sn2(SiO4)(Fe3+O4)2 |
| 9.AD.25 | 'Khoharite' | Mg3Fe3+2(SiO4)3 |
| 9.AD.25 | Irinarassite | Ca3Sn2(SiO4)(AlO4)2 |
| 9.AD.25 | Knorringite | Mg3Cr3+2(SiO4)3 |
| 9.AD.25 | Goldmanite | Ca3V3+2(SiO4)3 |
| 9.AD.25 | 'Blythite' | Mn2+3Mn3+2[SiO4]3 |
| 9.AD.25 | 'Skiagite' | Fe2+3Fe3+2[SiO4]3 |
| 9.AD.25 | 'UM1984-37-SiO:CrMn' | Mn2+3Cr3+2(SiO4)3 |
| 9.AD.25 | Almandine | Fe2+3Al2(SiO4)3 |
| 9.AD.25 va | 'Yamatoite' | (Mn2+,Ca)3(V3+,Al)2(SiO4)3 |
| 9.AD.25 | Momoiite | Mn2+3V3+2(SiO4)3 |
| 9.AD.25 | Grossular | Ca3Al2(SiO4)3 |
| 9.AD.25 | Andradite | Ca3Fe3+2(SiO4)3 |
| 9.AD.25 | Morimotoite | Ca3(TiFe2+)(SiO4)3 |
| 9.AD.25 | Majorite | Mg3(MgSi)(SiO4)3 |
| 9.AD.25 | Pyrope | Mg3Al2(SiO4)3 |
| 9.AD.25 | Schorlomite | Ca3Ti2(SiO4)(Fe3+O4)2 |
| 9.AD.30 | Hafnon | Hf(SiO4) |
| 9.AD.30 | Zircon | Zr(SiO4) |
| 9.AD.30 | Coffinite | U(SiO4) · nH2O |
| 9.AD.30 | Thorite | Th(SiO4) |
| 9.AD.30 va | 'Auerlite' | near Th(Si,P)O4 |
| 9.AD.30 | Stetindite-(Ce) | Ce4+SiO4 |
| 9.AD.35 | 'Tombarthite-(Y)' | Y4(Si,H4)4O12-x(OH)4+2x |
| 9.AD.35 | Huttonite | ThSiO4 |
| 9.AD.40 | Eulytine | Bi4(SiO4)3 |
| 9.AD.45 | Reidite | Zr(SiO4) |
| 9.AD.55 | Jeffbenite | Mg3Al2Si3O12 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Kimzeyite
mindat.org URL:
https://www.mindat.org/min-2209.html
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References for Kimzeyite
Reference List:
Milton, C., Ingram, B. L., Blade, L. V. (1961) Kimzeyite, a zirconium garnet from Magnet Cove, Arkansas. American Mineralogist, 46 (5-6) 533-548
Munno, Rosalba, Rossi, Giuseppe, Tadini, Carla (1980) Crystal chemistry of kimzeyite from Stromboli, Aeolian Islands, Italy. American Mineralogist, 65 (1-2) 188-191
Localities for Kimzeyite
Showing 24 localities.
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Angola | |
| Campeny et al. (2017) |
Brazil | |
| Traversa et al. (2001) |
Canada | |
| Tappe et al. (2005) |
| Tappe et al. (2004) |
| Villeneuve (1990) |
| Heaman et al. (2001) |
Germany | |
| Gröbner et al. (2019) |
Greenland | |
| Tappe et al. (2009) |
Italy | |
| Schingaro et al. (2001) |
| Munno et al. (1980) +1 other reference |
Norway | |
| Jamtveit et al. (1997) |
Russia | |
| American Mineralogist +1 other reference |
| Galuskina et al. (2013) | |
| Galuskina et al. (2010) |
Spain | |
| Casillas et al. (2024) |
Sweden | |
| |
| Kresten (1990) |
Tanzania | |
| Zaitsev A.N. et al. (2010) |
UK | |
| Beard et al. (2007) |
USA | |
| Rocks and Minerals (1999) |
| Smith (1988) | |
| H. Barwood - unpublished (2010) | |
| Rocks & Min.: 64:326. | |
| Smith |
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The
Kimzey Calcite Quarry, Magnet Cove, Hot Spring County, Arkansas, USA