Colomeraite (original) (raw)

A valid IMA mineral species

Crystal System:

Monoclinic

Name:

Named after the parent meteorite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:55612:5

c41157c9-4292-46b9-b7ba-b8d8c573274e

IMA Classification of ColomeraiteHide

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Approval history:

IMA No. 2021-061

Classification of ColomeraiteHide

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9.DA.

9 : SILICATES (Germanates)
D : Inosilicates
A : Inosilicates with 2-periodic single chains, Si2O6; pyroxene family

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.

Symbol Source Reference
Colo IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of ColomeraiteHide

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Mindat Formula:

NaTi3+Si2O6

Chemical AnalysisHide

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Empirical formulas:

Sample ID Empirical Formula
1 (Na0.88Ca0.08Mg0.04)(Ti3+0.53Ti4+0.15Mg0.17Fe0.11Mn0.01Al0.01)Si2.01O6

Sample references:

ID Locality Reference Notes
1 Colomera meteorite, Colomera, Granada, Andalusia, Spain Ma, C. (2023): Discovery of colomeraite, NaTi3+Si2O6, a new jadeite-group mineral in the Colomera iron meteorite. Meteoritics & Planetary Science, 58, 6081. by EPMA-WDS; empirical formula basis: 6 O apfu, Ti partitioning based on stoichiometry; ideal formula requires Na2O 13.89, Ti2O3 32.23, SiO2 53.87 wt.%

Crystallography of ColomeraiteHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 9.70(1) Å, b = 8.88(1) Å, c = 5.30(1) Å
β = 106.8(1)°

Ratio:

a:b:c = 1.092 : 1 : 0.597

Comment:

structure determined

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
2.996 Å (100)
2.923 Å (43)
2.562 Å (21)
2.537 Å (40)
2.496 Å (37)
1.637 Å (20)
1.619 Å (19)
1.408 Å (22)

Type Occurrence of ColomeraiteHide

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General Appearance of Type Material:

subhedral crystals, ~2-6 μm in size, closely associated with albite and K feldspar

Place of Conservation of Type Material:

mineralogical collections of the Smithsonian National Museum of Natural History, 10th St. & Constitution Ave. NW, Washington, DC 20560, USA, catalogue no. USNM 7928

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Synonyms of ColomeraiteHide

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Relationship of Colomeraite to other SpeciesHide

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Other Members of this group:

Aegirine NaFe3+Si2O6 Mon. 2/m : _B_2/b
Aegirine-augite (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 Mon. 2/m : _B_2/b
Augite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _B_2/b
Burnettite CaVAlSiO6 Mon. 2/m : _B_2/b
Clinoenstatite MgSiO3 Mon. 2/m : _P_21/b
Clinoferrosilite Fe2+2Si2O6 Mon. 2/m : _P_21/b
Davisite CaScAlSiO6 Mon. 2/m : _B_2/b
Diopside CaMgSi2O6 Mon. 2/m : _B_2/b
Esseneite CaFe3+[AlSiO6] Mon. 2/m : _B_2/b
Grossmanite CaTi3+ AlSiO6 Mon. 2/m : _B_2/b
Hedenbergite CaFe2+Si2O6 Mon. 2/m : _B_2/b
Jadeite Na(Al,Fe3+)Si2O6 Mon. 2/m : _B_2/b
Jervisite NaSc3+Si2O6 Mon. 2/m : _B_2/b
Johannsenite CaMn2+Si2O6 Mon. 2/m : _B_2/b
Kanoite Mn2+(Mg,Mn2+)Si2O6 Mon. 2/m : _P_21/b
Kosmochlor NaCrSi2O6 Mon. 2/m : _B_2/b
Kushiroite CaAl[AlSiO6] Mon. 2/m : _B_2/b
Namansilite NaMn3+Si2O6 Mon. 2/m : _B_2/b
Natalyite NaV3+Si2O6 Mon. 2/m : _B_2/b
Omphacite (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 Mon. 2/m
Petedunnite Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 Mon. 2/m : _B_2/b
Pigeonite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _P_21/b
Ryabchikovite CuMgSi2O6 Mon. 2/m : _P_21/b
Spodumene LiAlSi2O6 Mon. 2/m : _B_2/b
Tissintite (Ca,Na,◻)AlSi2O6 Mon. 2/m : _B_2/b
UM2001-19-SiO:AlCaMgNa (Na,Mg,Ca)(Mg,Al)Si2O6 Mon. 2/m : _B_2/b
UM2003-36-SiO:CaNa NaCrSi2O6 - CaMgSi2O6 Mon. 2/m : _B_2/b

Related Minerals - Strunz-mindat GroupingHide

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9.DA. Protoenstatite Mg2Si2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n
9.DA. Ryabchikovite CuMgSi2O6 Mon. 2/m : _P_21/b
9.DA.05 Donpeacorite (Mn,Mg)MgSi2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
9.DA.05 Enstatite Mg2Si2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
9.DA.05 Ferrosilite Fe2+2Si2O6 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
9.DA.10 Clinoenstatite MgSiO3 Mon. 2/m : _P_21/b
9.DA.10 Clinoferrosilite Fe2+2Si2O6 Mon. 2/m : _P_21/b
9.DA.10 Kanoite Mn2+(Mg,Mn2+)Si2O6 Mon. 2/m : _P_21/b
9.DA.10 Pigeonite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _P_21/b
9.DA.15 Augite (CaxMgyFez)(Mgy1Fez1)Si2O6 Mon. 2/m : _B_2/b
9.DA.15 Diopside CaMgSi2O6 Mon. 2/m : _B_2/b
9.DA.15 Esseneite CaFe3+[AlSiO6] Mon. 2/m : _B_2/b
9.DA.15 Hedenbergite CaFe2+Si2O6 Mon. 2/m : _B_2/b
9.DA.15 va Jeffersonite Ca(Mn,Zn,Fe)Si2O6
9.DA.15 Johannsenite CaMn2+Si2O6 Mon. 2/m : _B_2/b
9.DA.15 Petedunnite Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 Mon. 2/m : _B_2/b
9.DA.15 Davisite CaScAlSiO6 Mon. 2/m : _B_2/b
9.DA.15 Kushiroite CaAl[AlSiO6] Mon. 2/m : _B_2/b
9.DA.15 Grossmanite CaTi3+ AlSiO6 Mon. 2/m : _B_2/b
9.DA.20 Aegirine-augite (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 Mon. 2/m : _B_2/b
9.DA.20 Omphacite (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6 Mon. 2/m
9.DA.25 Aegirine NaFe3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Jadeite Na(Al,Fe3+)Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Jervisite NaSc3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Kosmochlor NaCrSi2O6 Mon. 2/m : _B_2/b
9.DA.25 Namansilite NaMn3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Natalyite NaV3+Si2O6 Mon. 2/m : _B_2/b
9.DA.25 Tissintite (Ca,Na,◻)AlSi2O6 Mon. 2/m : _B_2/b
9.DA.30 Spodumene LiAlSi2O6 Mon. 2/m : _B_2/b
9.DA.35 Hiroseite FeSiO3 Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a

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.

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References for ColomeraiteHide

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Localities for ColomeraiteHide

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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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- 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.

Spain (TL)
Andalusia Granada Colomera ⓘ Colomera meteorite (TL) Miyawaki et al. (2021)