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Northwest Africa 4590 meteorite (NWA 4590), Er Rachidia Province (Errachidia Province), Drâa-Tafilalet, Moroccoi
Regional Level Types
Northwest Africa 4590 meteorite (NWA 4590)Meteorite Fall Location
Er Rachidia Province (Errachidia Province)Province
Drâa-TafilaletRegion
MoroccoCountry

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Key
Latitude & Longitude (WGS84):
30° 19' 1'' North , 4° 56' 34'' West
Latitude & Longitude (decimal):
Köppen climate type:


Angrite, Cumulate
213 g — in small fragments, minor weathering

In 2006 scattered fragments from an apparently recent fall were found within several meters of each other near the border between Morocco and Algeria. The coarse-grained stone is composed of Clinopyroxene (33 vol%), Anorthite (28 vol%), Olivine (14 vol%), Kirschsteinite (5 vol%), Ulvöspinel (18 vol%) with minor accessories accounting for ~ 5 vol%. Exsolution lamellae in several phases plus grain boundary glasses indicate an original mafic or ultramafic rock which was subject to very rapid cooling — perhaps after an unusually violent impact ejection from deep within a very ancient homeworld.

Northwest Africa 4590 (or, NWA 4590) is an angrite — a small class of 21 listed stones (probably representing 13 or 14 separate falls). Angrites are basaltic achondrites — products of differentiating processes on a putative parent body. They are characterized by their low alkali contents, high Ca/Al ratios, and a varying, but distinctive mineral assemblage marked by several Al-Ca-Ti-rich phases which may include Ca-rich olivine with exsolved Kirschsteinite. Angrites have oxygen isotope ratios similar to those of the HED meteorites (likely fragments of asteroid Vesta). At the present time, however, on geochemical grounds, any close association between the HED achondrites and the angrites does not seem likely to most meteoriticists.

One thing is agreed upon, however. Angrites are derived from a very ancient homeworld. Formation of the NWA 4590 mineral assemblage occurred approximately 4.558 billion years ago. Several other angrites, including prototype Angra dos Reis, have similar ages (±1-2 million years). Other angrites apparently formed ~5 million years earlier. One hypothesis is that the younger Angrites originated from deeper realms within the putative parent body and cooled more slowly than the older angrites formed near the surface. Eventually, impacts of varying violence ejected both young and old rocks into space where happenstance and gravity have brought a few of them to rest upon the planet earth where an even smaller subset have been viewed by very interested eyes.

Angrite (Differentiated Achondrite)
Found 2006, 213 g

Northwest Africa 4590 (NWA 4590), a small purchased meteorite find with a fresh crust and mild weathering stains, appears to be a separate and unpaired meteorite — consisting only of impact-shattered fragments of a single meteorite fall. NWA 4590's principle constituents — fassaite [33 vol%], anorthite [28 vol%], fayalitic olivine [14 vol%], and kirschsteinite [5 vol%] — are the usual major constituent of almost all angrites. Its overall inventory of minor constituents is also quite similar to those reported for other angrites. However, unlike almost all recovered angrites, NWA 4590 appears to lack ferric iron. It also appears to have been more completely characterized than several other more massive and/or earlier recovered angrites. Rhönite and pigeonite, for example, have been reported and, more recently, a previously unidentified 'Ca-rich Silico-Phosphate' has been identified as a Si-rich apatite.

NWA 4590 is one of only 23 recorded angrites — a group of differentiated and quite ancient meteorites with high-temperature melt products and isotopic ratios similar to their prototype, Angra dos Reis (stone). While Angra dos Reis is the only angrite fall, it is somewhat unclear how many separate angrite falls are in our collections. 17 angrites from Northwest Africa have been listed at the Meteoritical Bulletin Database (March 2015), but whether they represent only a few falls or, say, 10-12 separate falls is not evident at this time. [Many NWA meteorite fragments have been distributed as purported 'separate' meteorites to enhance sales].

A word of caution. Some reports of apparent Fe-Ni metal in angrites have been labelled as 'kamacite' in published abstracts without accompanying compositional data. As at least some of the metal in angrites is Ni-poor (<2 wt%), it is not clear that such uncharacteristically Ni-poor iron should be given the conventional label for meteoritic iron. Meteoritic iron with an invariable higher Ni-component is found in almost all chondrites and irons. Rare instances of Ni-poor iron in meteorites are reported almost exclusively as tiny secondary phases in some differentiated achondrites.

Regions containing this locality

African PlateTectonic Plate
Sahara Desert, North AfricaDesert
Northwest Africa MeteoritesMeteorite Fall Location

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals. 1 erroneous literature entry.

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: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Description: Silicic Apatite: Crystal Structure, Space group, cell dimensions of Apatite with a somewhat unusual chemistry [some silicate tetraheda replacing phosphate tetrahedra]
Reference: Mikouchi, T., Sugiyama, K., Satake, W. & Amelin, Y. (2011) Mineralogy and Crystallography of Calcium Silico-Phosphate in Northwest Africa 4590 Angrite. Lunar and Planetary Science XLII. LPI Contribution No. 1608, pdf.2026. (March 2011); Amelin, Y. & Sapah, M. (2012) Cooling Rates of Plutonic Angrites from Pyroxene-Phosphate U-Pb Chronology: 75th Annual Meeting of the Meteoritical Society. Published in Meteoritics and Planetary Science Supplement, id.5199. (Sept2012) ; Mikouchi, T., Sugiyama, K., Satake, W. & Amelin, Y. (2011) Mineralogy and Crystallography of Calcium Silico-Phosphate in Northwest Africa 4590 Angrite: Lunar and Planetary Science Conference XLII. LPI Contribution No. 1608, pdf#2026. (Mar 2011)
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007)
Augite var: Fassaite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Reference: Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007)
'Clinopyroxene Subgroup'
Description: Compositionally, a Diopside-hedenbergite mix (Solid solution)
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Kuehner, S. M. & Irving, A. J. (2007) Grain Boundary Glasses in the Plutonic Angrite NWA 4590: Evidence for Rapid Decompressive Partial Melting and Cooling on Mercury? Lunar and Planetary Science XXXVIII. LPI Contribution No. 1338, pdf.1522. (March 2007) ; Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
'Fayalite-Forsterite Series'
Description: Ranges from Fo~72-77
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007); Mikouchi, T., Sugiyama, K., Satake, W. & Amelin, Y. (2011) Mineralogy and Crystallography of Calcium Silico-Phosphate in Northwest Africa 4590 Angrite: Lunar and Planetary Science Conference XLII. LPI Contribution No. 1608, pdf#2026. (Mar 2011)
'Glass'
Description: Glasses are mostly along grain boundaries
Reference: Kuehner, S. M. & Irving, A. J. (2007) Grain Boundary Glasses in the Plutonic Angrite NWA 4590: Evidence for Rapid Decompressive Partial Melting and Cooling on Mercury? Lunar and Planetary Science XXXVIII. LPI Contribution No. 1338, pdf.1522. (March 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Hercynite
Formula: Fe2+Al2O4
Reference: Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body, American Geophysical Union, Fall Meeting 2007, abs. #P41A-0219. (Dec 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Iron
Formula: Fe
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Kirschsteinite
Formula: CaFe2+SiO4
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Kuratite
Formula: Ca2(Fe2+5Ti)O2[Si4Al2O18]
Reference: http://adsabs.harvard.edu/abs/2007AGUFM.P41A0219K (as rhönite); http://www.hou.usra.edu/meetings/lpsc2014/pdf/1818.pdf
Merrillite
Formula: Ca9NaMg(PO4)7
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Mikouchi, T., Sugiyama, K., Satake, W. & Amelin, Y. (2011) Mineralogy and Crystallography of Calcium Silico-Phosphate in Northwest Africa 4590 Angrite. Lunar and Planetary Science XLII. LPI Contribution No. 1608, pdf.2026. (March 2011); Amelin, Y. & Sapah, M. (2012) Cooling Rates of Plutonic Angrites from Pyroxene-Phosphate U-Pb Chronology: 75th Annual Meeting of the Meteoritical Society. Published in Meteoritics and Planetary Science Supplement, id.5199. (Sept2012) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Description: As rare exsolution lamellae in clinopyroxene (fassaite)
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007)
Rhönite
Formula: Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36]
Description: Later recognised as kuratite.
Reference: http://adsabs.harvard.edu/abs/2007AGUFM.P41A0219K (as rhönite); http://www.hou.usra.edu/meetings/lpsc2014/pdf/1818.pdf; Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body, American Geophysical Union, Fall Meeting 2007, abs. #P41A-0219. (Dec 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Spinel
Formula: MgAl2O4
Reference: Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007)
Troilite
Formula: FeS
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)
Ulvöspinel
Formula: TiFe2O4
Reference: http://www.lpi.usra.edu/meteor/metbull.php?code=44983; Connolly, Jr., H. C. et al., (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694. (Sept 2007) ; Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 4 (9): 1647-1694. (Sept 2007); Kuehner, S. M. & Irving, A. J. (2007) Primary Ferric Iron-Bearing Rhönite in Plutonic Igneous Angrite NWA 4590: Implications for Redox Conditions on the Angrite Parent Body. American Geophysical Union, Fall Meeting 2007, abstract #P41A-0219. (Dec 2007)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Hercynite4.BB.05Fe2+Al2O4
Spinel4.BB.05MgAl2O4
Ulvöspinel4.BB.05TiFe2O4
Group 8 - Phosphates, Arsenates and Vanadates
Merrillite8.AC.45Ca9NaMg(PO4)7
Group 9 - Silicates
Anorthite9.FA.35Ca(Al2Si2O8)
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
var: Fassaite9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Kirschsteinite9.AC.05CaFe2+SiO4
Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
Rhönite ?9.DH.40Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36]
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
Kuratite-Ca2(Fe2+5Ti)O2[Si4Al2O18]

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)
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 7 - MULTIPLE OXIDES
AB2X4
Hercynite7.2.1.3Fe2+Al2O4
Spinel7.2.1.1MgAl2O4
Ulvöspinel7.2.5.2TiFe2O4
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)3(XO4)2
Merrillite38.3.4.4Ca9NaMg(PO4)7
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Kirschsteinite51.3.2.2CaFe2+SiO4
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
Pigeonite65.1.1.4(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 69 - INOSILICATES Chains with Side Branches or Loops
Chains with Side Branches or Loops with P>2
Rhönite ?69.2.1a.5Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36]
Unclassified Minerals, Mixtures, etc.
Anorthite-Ca(Al2Si2O8)
'Apatite'-Ca5(PO4)3(Cl/F/OH)
Augite
var: Fassaite
-(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
Iron-Fe
Kuratite-Ca2(Fe2+5Ti)O2[Si4Al2O18]

List of minerals for each chemical element

HHydrogen
H ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
O KuratiteCa2(Fe52+Ti)O2[Si4Al2O18]
O Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
O AnorthiteCa(Al2Si2O8)
O KirschsteiniteCaFe2+SiO4
O UlvöspinelTiFe2O4
O MerrilliteCa9NaMg(PO4)7
O HercyniteFe2+Al2O4
O ApatiteCa5(PO4)3(Cl/F/OH)
O Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
O SpinelMgAl2O4
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O RhöniteCa4[Mg8Fe23+Ti2]O4[Si6Al6O36]
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na MerrilliteCa9NaMg(PO4)7
Na Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
MgMagnesium
Mg Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg MerrilliteCa9NaMg(PO4)7
Mg Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Mg SpinelMgAl2O4
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg RhöniteCa4[Mg8Fe23+Ti2]O4[Si6Al6O36]
AlAluminium
Al KuratiteCa2(Fe52+Ti)O2[Si4Al2O18]
Al AnorthiteCa(Al2Si2O8)
Al HercyniteFe2+Al2O4
Al Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Al SpinelMgAl2O4
Al RhöniteCa4[Mg8Fe23+Ti2]O4[Si6Al6O36]
SiSilicon
Si KuratiteCa2(Fe52+Ti)O2[Si4Al2O18]
Si Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si AnorthiteCa(Al2Si2O8)
Si KirschsteiniteCaFe2+SiO4
Si Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si RhöniteCa4[Mg8Fe23+Ti2]O4[Si6Al6O36]
PPhosphorus
P MerrilliteCa9NaMg(PO4)7
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S TroiliteFeS
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Ca KuratiteCa2(Fe52+Ti)O2[Si4Al2O18]
Ca Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca AnorthiteCa(Al2Si2O8)
Ca KirschsteiniteCaFe2+SiO4
Ca MerrilliteCa9NaMg(PO4)7
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca RhöniteCa4[Mg8Fe23+Ti2]O4[Si6Al6O36]
TiTitanium
Ti KuratiteCa2(Fe52+Ti)O2[Si4Al2O18]
Ti UlvöspinelTiFe2O4
Ti Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Ti RhöniteCa4[Mg8Fe23+Ti2]O4[Si6Al6O36]
FeIron
Fe KuratiteCa2(Fe52+Ti)O2[Si4Al2O18]
Fe Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe KirschsteiniteCaFe2+SiO4
Fe UlvöspinelTiFe2O4
Fe TroiliteFeS
Fe Iron (var: Kamacite)(Fe,Ni)
Fe HercyniteFe2+Al2O4
Fe Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Fe IronFe
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe RhöniteCa4[Mg8Fe23+Ti2]O4[Si6Al6O36]
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Connolly, Jr., H.C. et al. (2007) Meteoritical Bulletin, no. 92, 2007 September: MAPS 42 (9), 1647-1694 (Sept 2007).
Connolly Jr., H. C. et al. (2007) The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science, 4(9), 1647-1694 (Sept 2007).
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