Ziroite
A valid IMA mineral species
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About Ziroite
Formula:
ZrO2
Colour:
brownish black tint
Specific Gravity:
5.53 (Calculated)
Crystal System:
Tetragonal
Name:
The name is derived from its composition.
Dimorph of:
As inclusions in corundum xenocrysts. May be treated as the Zr analogue of rutile, cassiterite, argutite, paratellurite, plattnerite, pyrolusite, and tripuhyite, although not isostructural (different space group).
Ziroite is a tetragonal polymorph of baddeleyite (monoclinic ZrO2). Synthetic ZrO2 with the P42/nmc zirconia (HT)-type structure is well known.
Ziroite is a tetragonal polymorph of baddeleyite (monoclinic ZrO2). Synthetic ZrO2 with the P42/nmc zirconia (HT)-type structure is well known.
Unique Identifiers
Mindat ID:
56024
Long-form identifier:
mindat:1:1:56024:3
Similar Names
| Cerite | A synonym | |
| Cerite-(CeCa) | A valid IMA mineral species - grandfathered | (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 |
| Cerite-(La) | A synonym of Ferricerite-(LaCa) | |
| Surite | A valid IMA mineral species | (Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2 |
| Zaïrite | A valid IMA mineral species | BiFe33+(PO4)2(OH)6 |
| Zirkite | A mixture of two or more distinct mineral species | |
| Zirlite | A synonym of Gibbsite | |
| Zorite | A valid IMA mineral species | Na8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2O |
IMA Classification of Ziroite
Classification of Ziroite
4.DE.
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
E : With medium-sized cations; with various polyhedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
E : With medium-sized cations; with various polyhedra
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 for Standard |
|---|---|---|
| Zro | 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 Ziroite
Transparency:
Transparent
Colour:
Brownish black tint
Density:
5.53 g/cm3 (Calculated)
Chemistry of Ziroite
Mindat Formula:
ZrO2
Elements listed:
Crystallography of Ziroite
Crystal System:
Tetragonal
Class (H-M):
4/mmm(4/m2/m2/m) - Ditetragonal Dipyramidal
Space Group:
P42/nmc
Setting:
P42/nmc
Cell Parameters:
a = 3.60(1) Å, c = 5.18(1) Å
Ratio:
a:c = 1 : 1.439
Unit Cell V:
67.13 ų (Calculated from Unit Cell)
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.590 Å | (32) |
| 1.800 Å | (100) |
| 1.478 Å | (30) |
| 1.295 Å | (12) |
| 1.273 Å | (30) |
| 1.142 Å | (14) |
| 1.051 Å | (22) |
| 0.908 Å | (12) |
Type Occurrence of Ziroite
General Appearance of Type Material:
It occurs as irregular crystals ~1–4 μm in size.
Place of Conservation of Type Material:
mineralogical collections of the Università di Milano, Via Mangiagalli 34, 20133 Milano, Italy, registration number MCMGPG-H2021-003
Associated Minerals at Type Locality:
Synonyms of Ziroite
Other Language Names for Ziroite
Common Associates
Associations Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 4.DE. | Colchesterite | Bi3+2Mo6+2O9 |
| 4.DE. | Pertoldite | GeO2 |
| 4.DE.05 | Downeyite | SeO2 |
| 4.DE.10 | Koragoite | (Mn2+,Fe3+)3(Nb,Ta,Ti)2(Nb,Mn)2(W,Ta)2O20 |
| 4.DE.15 | Russellite | Bi2WO6 |
| 4.DE.15 | Koechlinite | Bi2MoO6 |
| 4.DE.15 | Tungstibite | Sb3+2WO6 |
| 4.DE.20 | Tellurite | TeO2 |
| 4.DE.25 | Paratellurite | TeO2 |
| 4.DE.30 | Bismutotantalite | BiTaO4 |
| 4.DE.30 | Stibiotantalite | Sb3+TaO4 |
| 4.DE.30 | Cervantite | Sb3+Sb5+O4 |
| 4.DE.30 | Bismutocolumbite | BiNbO4 |
| 4.DE.30 | Stibiocolumbite | SbNbO4 |
| 4.DE.30 | Clinocervantite | Sb3+Sb5+O4 |
| 4.DE.35 | Baddeleyite | ZrO2 |
| 4.DE.40 | Billwiseite | Sb3+5Nb3WO18 |
| 4.DE.45 | Kyawthuite | Bi3+Sb5+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 Ziroite
mindat.org URL:
https://www.mindat.org/min-56024.html
Please feel free to link to this page.
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External Links:
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References for Ziroite
Reference List:
Málek, J.; Beneš, L.; Mitsuhashi, T. (1997) Powder diffraction data and Rietveld refinement of metastable t-ZrO2 at low temperature. Powder Diffraction, 12 (2). p.96-98. doi:10.1017/s0885715600009519
Localities for Ziroite
Showing 2 localities.
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.
Israel (TL) | |
| Miyawaki et al. (2022) |
| Ma et al. (2024) |
Quick NavTopAbout ZiroiteUnique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Chemistry Crystallography X-Ray Powder DiffractionType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Mount Carmel, Kishon Mid Reach zone 2, Kishon river, Haifa District, Israel