Carmeltazite (original) (raw)

A valid IMA mineral species

About CarmeltaziteHide

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Colour:

Dark brown to dark green

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

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Long-form identifier:

mindat:1:1:53294:9

aa3295a0-53ae-4945-8a03-4e039d6a4722

IMA Classification of CarmeltaziteHide

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Type description 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.

Classification of CarmeltaziteHide

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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

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

Physical Properties of CarmeltaziteHide

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Colour:

Dark brown to dark green

Optical Data of CarmeltaziteHide

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Bireflectance:

Weak to moderate

Reflectivity:

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

Comments:

Dark brown to dark green

Chemistry of CarmeltaziteHide

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Mindat Formula:

ZrAl2Ti4O11

Crystallography of CarmeltaziteHide

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Crystal System:

Orthorhombic

Class (H-M):

m m m _(_2/_m_2/_m_2/m ) - Dipyramidal

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

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of CarmeltaziteHide

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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.

Synonyms of CarmeltaziteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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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

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References for CarmeltaziteHide

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Reference List:

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.

Miyawaki, Ritsuro, Hålenius, Ulf, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2019) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) NEWSLETTER 47. European Journal of Mineralogy, 31 (1) 197-202 doi:10.1127/ejm/2019/0031-2839

Localities for CarmeltaziteHide

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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.

Locality ListHide

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