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Meteorite Classifications
Meteorite Room at the Chicago Field Museum in 1905
Meteorite Room at the Chicago Field Museum in 1905

Carbonaceous Chondrites :


CI (Ivuna)
CM1 (Mighei)
CM2 (subdivided into CM2.0 to CM2.6)
CM3
CO3 (Ornans) (subdivided into CO3.03 to CO3.7)
CV (Vigarano) (also CV2 and CV3)
CK (Karoonda) (CK4, CK5, CK6)
CR (Renazzo) (CR1, CR2, CR3)
CB (Bencubbin)
CH
C ungrouped
C2 ungrouped (Tagish Lake)
CR ungrouped
C4 ungrouped


Ordinary Chondrites :

Rumuruti R3 (subdivided into R3.5-6 to R3.9)
R4
R5
R6

LL (subdivided into LL3.0 to LL3.9)
LL4
LL5
LL5/6
LL6
LL6/7
LL7
LL impact melt

LL transitional (L/LL3 to L/LL6)
L (subdivided into L3.0 to L3.9)
L4
L5
L6
L6/7
L7
L impact melt

H/L transitional (H/L3 to H/L6 IMB, H/L3.6 to H/L3-4)
H (subdivided into H3.0 to H3.9)
H4
H5
H6
H7
H impact melt
ungrouped ordinary chondrites


Enstatite Chondrites :

EL (EL3 to EL7)
EL impact melt
EH/L
EH (EH3 to EH7)
EH impact melt
ungrouped enstatite chondrites

K (Kakangari)

Meta-chondrites (M-CV, M-CR, M-H, M-LL)


Primitive Chondrites :

Acapulcoite
Lodranite
Winonaites
ungrouped primitive chondrites


Achondrites :

Howardite (subdivided into fragmental breccia and regolith breccia)
Eucrite (monomict and polymict with each having subclasses)
Diogenite (monomict and polymict)
Olivine Diogenite
Dunite
Ureilite (monomict and polymict)


Martian achondrites :

Shergottite
Pyroxene-phyric basaltic shergottite
Olivine-phyric basaltic shergottite
Olivine-orthopyroxene-phyric basaltic shergottite
Pyroxene-peridotitic (Wehrlitic) shergottite
Lherzolitic shergottite
Diabasic shergottite

Nakhlite
Chassignite
Orthopyroxenite (ALH 84001)


Lunar Achondrites :

Feldspathic breccias
Regolith breccia
Fragmental breccia
Impact melt breccia
Granulitic breccia
Mafic-rich
Thorium-rich
KREEP-rich

Mingled Breccia
Mare Basalt


Other Achondrites :

Angrites (Plutonic and Basaltic)
Brachinite
Aubrite
ungrouped achondrites (Ibitira, Pasamonte, etc)


Stony-Irons :

Mesosiderites (1A,1B,2A,2B,2C,3A,3B,4A,4B)
ungrouped mesosiderites

Pallasites (Main Group, Eagle Station group, Pyroxene group)
Pallasite-am (anomalous, PMG-am, PMG-as)
ungrouped pallasites


Iron meteorites :

The main structural groups, and not the various grouplets and chemical sub-types of each main group.

Listing all of the known sub-types of irons would require a LONG list resembling a flow-chart.

IAB
IC
IIAB
IIC
IID
IIE
IIF
IIG
IIIAB
IIIE
IIIF
IVA
IVB
ungrouped irons


(Compiled from work done by both David Weir and Michael Gilmer)



Meteorite Classifications © J. H. Wittke & T. E. Bunch - ASU
Meteorite Classifications © J. H. Wittke & T. E. Bunch - ASU
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