Carmeltazite
A valid IMA mineral species
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About Carmeltazite
Formula:
ZrAl2Ti4O11
Colour:
Dark brown to dark green
Lustre:
Metallic
Crystal System:
Orthorhombic
Name:
The name carmeltazite derives from the type locality, Mt Carmel (“CARMEL”), and from the dominant metals present in the mineral, i.e., titanium, aluminum and zirconium (“TAZ”).
Has an atomic arrangement similar to that observed in a defective spinel structure.
Found in pockets of trapped melt interstitial to, or included in, corundum crystals.
Represents a relatively small group of minerals in which Zr and Ti are located in separate structural sites.
Awarded 'Mineral of the Year' by the IMA-CNMNC in 2018.
Found in pockets of trapped melt interstitial to, or included in, corundum crystals.
Represents a relatively small group of minerals in which Zr and Ti are located in separate structural sites.
Awarded 'Mineral of the Year' by the IMA-CNMNC in 2018.
Unique Identifiers
Mindat ID:
53294
Long-form identifier:
mindat:1:1:53294:9
GUID
(UUID V4):
(UUID V4):
aa3295a0-53ae-4945-8a03-4e039d6a4722
IMA Classification of Carmeltazite
Approved
Approval year:
2018
First published:
2018
Classification of Carmeltazite
4.BB.30
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Ctz | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Carmeltazite
Optical Data of Carmeltazite
Bireflectance:
Weak to moderate
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 471.1nm | 21.8% | 22.9% |
| 548.3nm | 21.0% | 21.6% |
| 586.6nm | 19.9% | 20.7% |
| 652.3nm | 18.5% | 19.8% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 22.9%.
R1 shown in black, R2 shown in red
Internal Reflections:
Absent
Pleochroism:
Weak
Comments:
Dark brown to dark green
Chemistry of Carmeltazite
Mindat Formula:
ZrAl2Ti4O11
Elements listed:
Crystallography of Carmeltazite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 4.0951(9) Å, b = 5.8123(4) Å, c = 10.0848(7) Å
Ratio:
a:b:c = 0.705 : 1 : 1.735
Unit Cell V:
826.2 ų
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.04 Å | (65) |
| 4.09 Å | (60) |
| 2.961 Å | (100) |
| 2.885 Å | (40) |
| 2.047 Å | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 8 : Mafic igneous rocks | |
| 9 : Lava/xenolith minerals (hornfels, sanidinite facies) |
Type Occurrence of Carmeltazite
General Appearance of Type Material:
Inclusions in pockets of trapped melt interstitial to, or included in, corundum xenocrysts.
Place of Conservation of Type Material:
Natural History Museum, University of Florence, Italy (3293/I).
Geological Setting of Type Material:
Cretaceous Mt Carmel volcanics of northern Israel.
Associated Minerals at Type Locality:
Reference:
Griffin, W.L., Gain, S.E.M., Bindi, L., Toledo, V., Cámara, F., Saunders, M., O’Reilly, S.Y. (2018) Carmeltazite, ZrAl2Ti4O11, a New Mineral Trapped in Corundum from Volcanic Rocks of Mt Carmel, Northern Israel. Minerals: 8: 601.
Download:
Synonyms of Carmeltazite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 4.BB. | Elgoresyite | (Mg5Si2)O9 |
| 4.BB. | Chenmingite | FeCr2O4 |
| 4.BB. | Dellagiustaite | V2+Al2O4 |
| 4.BB. | Thermaerogenite | CuAl2O4 |
| 4.BB. | Chukochenite | LiAl5O8 |
| 4.BB. | Garpenbergite | Mn6◻AsSbO10(OH)2 |
| 4.BB. | Magnéliite | Ti3+2Ti4+2O7 |
| 4.BB. | Jianmuite | ZrTi4+Ti3+5Al3O16 |
| 4.BB.05 | Chromite | Fe2+Cr3+2O4 |
| 4.BB.05 | Cochromite | CoCr2O4 |
| 4.BB.05 | Coulsonite | Fe2+V3+2O4 |
| 4.BB.05 | Cuprospinel | Cu2+Fe3+2O4 |
| 4.BB.05 | Filipstadite | (Fe3+0.5Sb5+0.5)Mn2O4 |
| 4.BB.05 | Franklinite | Zn2+Fe3+2O4 |
| 4.BB.05 | Gahnite | ZnAl2O4 |
| 4.BB.05 | Galaxite | Mn2+Al2O4 |
| 4.BB.05 | Hercynite | Fe2+Al2O4 |
| 4.BB.05 | Jacobsite | Mn2+Fe3+2O4 |
| 4.BB.05 | Manganochromite | Mn2+Cr2O4 |
| 4.BB.05 | Magnesiocoulsonite | MgV2O4 |
| 4.BB.05 | Magnesiochromite | MgCr2O4 |
| 4.BB.05 | Magnesioferrite | MgFe3+2O4 |
| 4.BB.05 | Magnetite | Fe2+Fe3+2O4 |
| 4.BB.05 | Nichromite | (Ni,Co,Fe)(Cr,Fe,Al)2O4 |
| 4.BB.05 | Qandilite | (Mg,Fe3+)2(Ti,Fe3+,Al)O4 |
| 4.BB.05 | Spinel | MgAl2O4 |
| 4.BB.05 | Trevorite | Ni2+Fe3+2O4 |
| 4.BB.05 | Ulvöspinel | TiFe2+2O4 |
| 4.BB.05 | Vuorelainenite | Mn2+V3+2O4 |
| 4.BB.05 | Zincochromite | ZnCr2O4 |
| 4.BB.05 | Harmunite | CaFe2O4 |
| 4.BB.05 | Wernerkrauseite | Ca(Fe3+,Mn3+)2Mn4+O6 |
| 4.BB.05 | Deltalumite | (Al0.67◻0.33)Al2O4 |
| 4.BB.05 | Guite | Co2+Co3+2O4 |
| 4.BB.10 | Hausmannite | Mn2+Mn3+2O4 |
| 4.BB.10 | Hetaerolite | ZnMn2O4 |
| 4.BB.10 | Manganostibite | (Mn,Fe)7SbAsO12 |
| 4.BB.15 | Maghemite | (Fe3+0.67◻0.33)Fe3+2O4 |
| 4.BB.15 | Titanomaghemite | (Ti4+0.5◻0.5)Fe3+2O4 |
| 4.BB.20 | Tegengrenite | (Mn3+0.5Sb5+0.5)Mg2O4 |
| 4.BB.25 | Xieite | Fe2+Cr2O4 |
| 4.BB.35 | Feiite | Fe2+2(Fe2+Ti4+)O5 |
| 4.BB.40 | Maohokite | MgFe2O4 |
| 4.BB.45 | Tschaunerite | (Fe2+)(Fe2+Ti4+)O4 |
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 Carmeltazite
mindat.org URL:
https://www.mindat.org/min-53294.html
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References for Carmeltazite
Localities for Carmeltazite
symbol to view information about a locality.
The 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.
Argentina | |
| Zappettini et al. (2023) +1 other reference |
Israel | |
| Griffin et al. (2021) |
| Griffin et al. (2018) | |
Russia | |
| Rappenglück (2022) |
Ukraine | |
| Yatsenko et al. (2021) |
| Yatsenko et al. (2020) | |
| Yatsenko et al. (2017) |
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Rakefet magmatic complex, Mount Carmel, Haifa District, Israel