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| Leonora | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Leonora This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 1990 Country: Australia Mass:  2.57 kg | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 1709 approved meteorites (plus 4 unapproved names) classified as L4. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 29 May 2012 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 100:
Leonora 28°50’42.7"S, 121°23’49.2"E Western Australia, Australia Found: circa 1990 Classification: Ordinary chondrite (L4) History: A single stone, buried 30 cm below the surface, was found with a metal detector, then broken into two pieces by the finder and discarded. Approximately ten years later two pieces were retrieved and further broken before being recognized as a meteorite. Physical characteristics: Four crusted fragments weighing 1340 g, 1217 g, 12.73 g and 2.28 g can be reassembled to make an almost complete individual. Petrography: (A. W. R. Bevan and P. J. Downes, WAM) Microscopically, chondrules with microcrystalline, devitrified mesostases can be clearly distinguished and are set in a microcrystalline, iron-stained matrix. Chondrule types include barred and porphyritic olivine and radiating pyroxene. Abundant grains of polysynthetically twinned clinopyroxene occur in chondrules. Accessory minerals include kamacite, taenite and chromite. Geochemistry: (A. W. R. Bevan and P. Downes, WAM) Olivine, Fa24.8 (n=13); low-Ca pyroxene, Fs21.1-26.1Wo0.96-2.4; kamacite, Ni=5.46, Co=0.74 (all wt%); chromite, Cr# 88.,1 Fe# 87.4. Classification: Ordinary chondrite (L4); S2; W2 Specimens: Main mass and three thin sections at WAM. | ||||||||||||||||||||||||||||||||||||
| Data from: MB100 Table 1 Line 557: |
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| Institutions and collections |
WAM: Department of Earth & Planetary Sciences, Western Australian Museum. Locked Bag 49, Welshpool DC, Western Australia 6986, Australia; Website (institutional address; updated 18 Oct 2011) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography:
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Statistics: This is 1 of 346 approved meteorites from Western Australia, Australia (plus 1 unapproved name) (plus 11 impact craters) This is 1 of 714 approved meteorites from Australia (plus 45 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||
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