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Carmeltazite

A valid IMA mineral species
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08434640017272263841391.jpg
Carmeltazite

Rakefet magmatic complex, Mount Carmel, Kishon Mid Reach zone 2, Kishon river, Haifa District, Israel
08434640017272263841391.jpg
Carmeltazite

Rakefet magmatic complex, Mount Carmel, Kishon Mid Reach zone 2, Kishon river, Haifa District, Israel
09495280017272473174836.jpg
Carmeltazite

Rakefet magmatic complex, Mount Carmel, Kishon Mid Reach zone 2, Kishon river, Haifa District, Israel
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About CarmeltaziteHide

06493620017272473189026.jpg
Mount Carmel

Mount Carmel, Kishon Mid Reach zone 2, Kishon river, Haifa District, Israel
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.


Unique IdentifiersHide

Mindat ID:
53294
Long-form identifier:
mindat:1:1:53294:9

IMA Classification of CarmeltaziteHide

Classification of CarmeltaziteHide

Strunz-mindat (2026):
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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
CtzIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of CarmeltaziteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Dark brown to dark green

Optical Data of CarmeltaziteHide

Bireflectance:
Weak to moderate
Reflectivity:
WavelengthR1 (%)R2 (%)
471nm21.8% 22.9%
548nm21.0% 21.6%
586nm19.9% 20.7%
652nm18.5% 19.8%


Graph shows reflectance levels at different wavelengths (in nm). 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 CarmeltaziteHide

Mindat Formula:
ZrAl2Ti4O11
Element Weights:
Element% weight
Ti37.349 %
O34.330 %
Zr17.795 %
Al10.526 %

Calculated from ideal end-member formula.
Ti
O
Zr
Al
Elements listed:
Al, O, Ti, Zr - search for minerals with similar chemistry

Crystallography of CarmeltaziteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/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 DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest 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 CarmeltaziteHide

Type Locality:
ⓘ Rakefet magmatic complex, Mount Carmel, Kishon Mid Reach zone 2, Kishon river, Haifa District, Israel
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:
AnorthiteCorundumOsborniteTistarite
Reference:
Griffin, William, Gain, Sarah, Bindi, Luca, Toledo, Vered, Cámara, Fernando, Saunders, Martin, O’Reilly, Suzanne (2018) Carmeltazite, ZrAl2Ti4O11, a New Mineral Trapped in Corundum from Volcanic Rocks of Mt Carmel, Northern Israel. Minerals, 8 (12) 601 doi:10.3390/min8120601

Synonyms of CarmeltaziteHide

Other Language Names for CarmeltaziteHide

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Carmeltazite associated with TistariteTi3+2O3
1 photo of Carmeltazite associated with CorundumAl2O3

Related Minerals - Strunz-mindat GroupingHide

4.BB.ChenmingiteFeCr2O4Orth. mmm(2/m2/m2/m) : Pnma
4.BB.ThermaerogeniteCuAl2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.ChukocheniteLiAl5O8Orth. mmm(2/m2/m2/m) : Imma
4.BB.Elgoresyite(Mg5Si2)O9Mon. 2/m : B2/m
4.BB.JianmuiteZrTi4+Ti3+5Al3O16Tet. 4 : I4
4.BB.DellagiustaiteV2+Al2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.GarpenbergiteMn6◻AsSbO10(OH)2Orth. mmm(2/m2/m2/m)
4.BB.MagnéliiteTi3+2Ti4+2O7Tric. 1 : P1
4.BB.05Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05ChromiteFe2+Cr3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05Filipstadite(Fe3+0.5Sb5+0.5)Mn2O4Iso.
4.BB.05JacobsiteMn2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05WernerkrauseiteCa(Fe3+,Mn3+)2Mn4+O6Orth. mmm(2/m2/m2/m) : Pnma
4.BB.05HarmuniteCaFe2O4Orth. mmm(2/m2/m2/m) : Pbcm
4.BB.05ZincochromiteZnCr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05Deltalumite(Al0.67◻0.33)Al2O4Tet. 42m : P4m2
4.BB.05FrankliniteZn2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05CochromiteCoCr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05'Nichromite'(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05HercyniteFe2+Al2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05GahniteZnAl2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05GalaxiteMn2+Al2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05GuiteCo2+Co3+2O4Iso.
4.BB.05CoulsoniteFe2+V3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05VuorelaineniteMn2+V3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05SpinelMgAl2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05CuprospinelCu2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05ManganochromiteMn2+Cr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnesiocoulsoniteMgV2O4Iso. m3m(4/m32/m)
4.BB.05TrevoriteNi2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnesiochromiteMgCr2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnesioferriteMgFe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05MagnetiteFe2+Fe3+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.05UlvöspinelTiFe2+2O4Iso. m3m(4/m32/m) : Fd3m
4.BB.10HausmanniteMn2+Mn3+2O4Tet. 4/mmm(4/m2/m2/m) : I41/amd
4.BB.10HetaeroliteZnMn2O4Tet. 4/mmm(4/m2/m2/m) : I41/amd
4.BB.10Manganostibite(Mn,Fe)7SbAsO12Orth. mmm(2/m2/m2/m)
4.BB.15Titanomaghemite(Ti4+0.5◻0.5)Fe3+2O4Iso. 432 : P4332
4.BB.15Maghemite(Fe3+0.67◻0.33)Fe3+2O4Iso. 432 : P4132
4.BB.20Tegengrenite(Mn3+0.5Sb5+0.5)Mg2O4Trig. 3 : R3
4.BB.25XieiteFe2+Cr2O4Orth. mmm(2/m2/m2/m)
4.BB.35FeiiteFe2+2(Fe2+Ti4+)O5Orth. mmm(2/m2/m2/m) : Cmcm
4.BB.40MaohokiteMgFe2O4Orth. mmm(2/m2/m2/m) : Pnma
4.BB.45Tschaunerite (Fe2+)(Fe2+Ti4+)O4Orth. mmm(2/m2/m2/m) : Cmcm

Other InformationHide

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 CarmeltaziteHide

References for CarmeltaziteHide

Localities for CarmeltaziteHide

Showing 7 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Mendoza Province
    • Las Heras Department
      • Capdevilla District
Zappettini et al. (2023) +1 other reference
Israel
 
  • Haifa District
    • Kishon river
      • Kishon Mid Reach zone 2
Griffin et al. (2021)
Griffin et al. (2018)
Russia
 
  • Kamchatka Krai
    • Milkovsky District
Rappenglück (2022)
Ukraine
 
  • Donetsk Oblast
Yatsenko et al. (2021)
    • Starobesheve Raion
      • Kalmiuske Raion
Yatsenko et al. (2020)
  • Khmelnytskyi Oblast
    • Shepetivka Raion
Yatsenko et al. (2017)
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