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| Spade | |||||||||||||
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| Basic information | Name: Spade This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2000 Country: United States Mass:  8.86 kg | ||||||||||||
| Classification history: |
This is 1 of 6632 approved meteorites (plus 5 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||
| Writeup |
Writeup from MB 87:
Spade Lamb County, Texas, USA Found October 2000 Ordinary chondrite (H6) A single mass of 8.86 kg was found in a grass field by Mr. J. Talbert while farming. Classification and mineralogy (R. Jones, UNM; A. Rubin, UCLA): Olivine, mean Fa19; Low-Ca pyroxene, mean Fs17Wo3.75; Plagioclase, mean Ab79.9Or5.8; kamacite, mean Ni 6.9 wt%, Co 0.46 wt%. Shock stage S2, weathering grade W2. Spade is an annealed impact melt rock. It has very low abundances of relict chondrules and coarse mafic silicates; heterogeneous plagioclase; high Wo contents of low-Ca pyroxene; chromite-plagioclase assemblages; and extensive silicate darkening. Specimens: main mass with finder; type specimen, 81 g, plus thin section, UNM. | ||||||||||||
| Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015) |
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| References: | Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
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Geography:
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Statistics: This is 1 of 314 approved meteorites from Texas, United States (plus 2 unapproved names) (plus 3 impact craters) This is 1 of 1896 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters) | ||||||||||||
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