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Primary and Secondary Structures - Meteorites
New England Meteoritical Services

Updated Contents, December 12, 2024

Primary and Secondary Structures - Meteorites

Table of Contents

	Structure	Meteorite		Structure	Meteorite

1	Martensitic structure	Tishomingo Iron, ungrouped	26	Troilite spiders	Willamette Iron, IIIAB

2	Graphite Troilite nodule	Shawnee, Mt. Dooling, Odessa, Cape York, Pizhanka	27	Elongated Cohenite	Uruacu Iron, IAB-MG

3	Recrystallized Kamacite	Seneca Falls Iron, IIIAB	28	Degenerate Plessite	Henbury Iron, IIIAB

4	Crystal faces and grain boundaries in an iron meteorite	Gibeon Iron, IVA	29	Chondrules	Mix
5	Rhabdites and Schreibersite	Abai Iron, IAB-MG	30	Neumann lines and Rhabdites	Uwet Iron, IIAB

6	Palmate Cohenite crystals	Sana Rosa Iron, IC	31	Cloudy Taenite rimmed Kamacite	Grant Iron, IIIAB

7	Graphite cakes	Redfields Iron, ungrouped	32	Large Kamacite spindles in an ungrouped iron	Cowra Iron, ungrouped
8	Kamacite spindles with schreibersite	Balambala Iron, IIIF	33	Breccias, Impact and Regolith	Mix
9	Social Circle	Social Circle Iron, IVA	34	Schreibersite crystals in an ataxite	Gebel Kamil Iron, ungrouped

10	Kamacite globules in Gujba	Gujba Stone, Bencubbinite, carbonaceous chondrite.	35	Globular silicates	Tucson Ring Iron, ungrouped

11	Dendritic melt pockets	Watson 001 Iron, IIE	36	Mosiac aggregates in a Hexahedrite	Santo Antonio do Descoberto Iron, IIAB

12	Troilite droplets	N'Goureyma Iron, ungrouped	37	Neumann Lines in a Mesosiderite	NWA 6266 Mesosiderite

13	Comb Plessite	Carbo Iron, IID	38	Acicular Plessite	Glorieta Mountain Pallisite-MG
14	An Ungrouped Iron	Elton Iron, ungrouped	39	Taenite ribbons	Arlington, Sokoto Iron, IIE-an Iron, IIIAB

15	Swathing Kamacite	Maslyanino Iron, IAB, complex	40	Net Plessite	Cape York Iron, IIIAB

16	Shocked Iron meteorites	Tamarual, Iron, IIIAB Paloduro, Iron, IIIE Deelfontein, Iron IAB	41	CAI's	Mix
17	Dendritic Troilite	Chico Stone, L6 chondrite	42	Ropey Schreibersite	Oued Bouzdim 001 Pallasite, Eagle Station grouplet

18	Fusion crust	Mix	43	Rhabdites, two generations	Gressk Iron, IIAB

19	Schlieren - "flames"	Ysleta Iron, ungrouped	44	Plessitic octahedrite	Ballinoo Iron, IIC

20	Swollen Kamacite lamellae	Yarovoye Iron, IIIAB	45	Recrystallized Taenite lamellae aggregates	Seneca Falls Iron, IIIAB
21	Druzy vugs in an iron meteorite	Albion Iron, IVA	46	Flow lines	Antarctic unclassified Stone, chondrite Bilanga, Achondirite, diogenite
22	Vermicular Schreibersite	Fort Stockton Iron, octahedrite Classification not refined	47	Troilite, Daubreelite nodules	Nordheim Iron, ungrouped
23	Decomposing Cohenite	Nantan Iron, IAB-MG	48	Prismatic Rhabdites	Bruno, Walker County, Coahuila Iron, IID Iron, IID Iron, IID
24	Regmaglypts	Mix	49	Recrystallized hexahedrite, Carver	Carver, IIAB iron
25	Open mesh Plessite and Kamacite necking	Bristol Iron, IVA	50	Taenite, Martensite and dense Plessite fields	Bella Roca Iron, IIIAB