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Northwest Africa 10214 meteorite (NWA 10214), Northwest Africa Meteoritesi
Regional Level Types
Northwest Africa 10214 meteorite (NWA 10214)Meteorite Fall Location
Northwest Africa MeteoritesMeteorite Fall Location

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Meteorite Class:
Meteoritical Society Class:


Unequilibrated ordinary chondrite, brecciated (LL3,br; S2; W3)
Found, 2015 or earlier; 1.816 kg

A moderately large single meteoritic stone was purchased in Tucson. Inspections revealed distinct chondrules (~0.4 mm, ave diam.), chondrule fragments, CAIs, and an unusual carbonaceous chondrite clast within an encompassing fine-grained matrix (60 vol%). Textures and average compositions of olivine (Fa28.1±1.8) and twinned low Ca-pyroxene (Fs15.9±8.8) are generally characteristic of unequilibrated LL3 ordinary chondrites. Compositional extremes within silicates [forsterite and clinoenstatite, sensu stricto, along with anorthite and augite grains] as well as LL5, LL6, and C chondrite clasts are, however, often outside the normal textural, mineralogical, and chemical range of 'ordinary' LL3 meteorites. Chondrule diameters range from 0.12 — 0.8 mm and include all major textural varieties (porphyritic, radial, barred, cryptocrystalline, and granular types) with porphyritic pyroxene-rich (PP) types particularly prominent. Original Fe-Ni metal content (kamacite and taenite) was originally ~2-3 vol%. The complex textures — cited in the references and described in detail by Rubin et al. (2017) — are such that NWA 10214, unlike most well-described unequilibrated LL chondrites, has not been assigned a specific subtype. Rubin et al. (2017) thought that the presence of L5 and L6 clasts makes an L3-6 classification more appropriate. Perhaps an 'LL3, anomalous' label would be more accurate. Undulose extinction in most coarse olivine grains and the lack of planar fractures support an S2 shock stage. With ~70% of the Fe-Ni altered to limonite the meteorite has been assigned to the W3 weathering stage. In addition to the pervasive limonite stains, weatherate pentlandite is also present.

NWA 10214 is one of 502 recognized LL3 ordinary chondrites with approved names posted at the Meteoritical Bulletin Database as of early March 2017. As most recovered LL3 chondrites are quite small (median mass ~100 g), the 1.8 kg NWA 10214 is a welcome addition to this mineralogically diverse subset of LL-group meteorites.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 valid minerals.

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Anorthite
Formula: Ca(Al2Si2O8)
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).
Clinoenstatite
Formula: MgSiO3
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
'Clinopyroxene Subgroup'
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
Diopside
Formula: CaMgSi2O6
Description: Prominent in CAIs and other inclusions.
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
'Fayalite-Forsterite Series'
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
Forsterite
Formula: Mg2SiO4
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).
Iron
Formula: Fe
Reference: Meteoritical Bulletin, no. 104, in preparation (2015) [On Line: See Meteoritical Bulletin Database e-link below]
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Meteoritical Bulletin, no. 104, in preparation (2015) [On Line: See Meteoritical Bulletin Database e-link below]; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
Spinel
Formula: MgAl2O4
Description: Particularly prominent in CAIs.
Reference: Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
Taenite
Formula: (Fe,Ni)
Reference: Meteoritical Bulletin, no. 104, in preparation (2015) [On Line: See Meteoritical Bulletin Database e-link below]; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).
Troilite
Formula: FeS
Reference: Meteoritical Bulletin, no. 104, in preparation (2015) [On Line: See Meteoritical Bulletin Database e-link below]; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).; Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Taenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Pentlandite2.BB.15(FexNiy)Σ9S8
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Spinel4.BB.05MgAl2O4
Group 9 - Silicates
Anorthite9.FA.35Ca(Al2Si2O8)
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Clinoenstatite9.DA.10MgSiO3
Diopside9.DA.15CaMgSi2O6
Forsterite9.AC.05Mg2SiO4
Unclassified Minerals, Rocks, etc.
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Taenite1.1.11.2(Fe,Ni)
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Clinoenstatite65.1.1.1MgSiO3
Diopside65.1.3a.1CaMgSi2O6
Unclassified Minerals, Mixtures, etc.
Anorthite-Ca(Al2Si2O8)
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
Iron-Fe
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
OOxygen
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O ClinoenstatiteMgSiO3
O DiopsideCaMgSi2O6
O ForsteriteMg2SiO4
O Limonite(Fe,O,OH,H2O)
O SpinelMgAl2O4
O AnorthiteCa(Al2Si2O8)
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg ClinoenstatiteMgSiO3
Mg DiopsideCaMgSi2O6
Mg ForsteriteMg2SiO4
Mg SpinelMgAl2O4
AlAluminium
Al SpinelMgAl2O4
Al AnorthiteCa(Al2Si2O8)
SiSilicon
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si ClinoenstatiteMgSiO3
Si DiopsideCaMgSi2O6
Si ForsteriteMg2SiO4
Si AnorthiteCa(Al2Si2O8)
SSulfur
S TroiliteFeS
S Pentlandite(FexNiy)Σ9S8
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca DiopsideCaMgSi2O6
Ca AnorthiteCa(Al2Si2O8)
FeIron
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Taenite(Fe,Ni)
Fe TroiliteFeS
Fe IronFe
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Limonite(Fe,O,OH,H2O)
Fe Pentlandite(FexNiy)Σ9S8
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Taenite(Fe,Ni)
Ni Pentlandite(FexNiy)Σ9S8

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Meteoritical Bulletin, no. 104, in preparation (2015) [On Line: See Meteoritical Bulletin Database e-link below]
Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2016) New Kind of Chondrite: A Clast with Carbonaceous, Ordinary, and Unique Characteristics in the Northwest Africa 10214 LL3 Breccia: Lunar and Planetary Science Conference XLVII. LPI Contribution No. 1903, pdf.1048. (March 2016).
Rubin, A.E., Breen, J.P., Isa, J. & Tutorow, S. (2017) NWA 10214 - An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts: Meteoritics & Planetary Science 52(2): 372-390. (Feb 2017).

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