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Ardón
Basic information Name: Ardón
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: Yes
Year fell: 1931
Country: Spain
Mass:help 5.5 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  L6
Recommended:  L6    [explanation]

This is 1 of 11000 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 19 Mar 2014
Writeuphelp
Writeup from MB 103:

Ardón        42°26.18’N, 5°33.63’W

Castilla y Leon, Spain

Fell: 9 July 1931

Classification: Ordinary chondrite (L6)

History: Rosa González Pérez, who was 11 years old at the time, witnessed this meteorite falling in front of her, just after seeing a bolide in the sky. In a recent telling of the event, she reported that she immediately collected the specimen from the ground "having the feeling that the meteorite was still hot." She kept the specimen in a box, where it has been preserved for 80 years. She kept the meteorite as a "family secret" until she explained the event to her nephew (J. Antonio González) and niece. She still knows the exact recovery location, as the meteorite fell in a known Ardón street. No other specimens are known.

Physical characteristics: About 90% of the 5.48 g specimen is covered by a fresh fusion crust. Once cut, the metal grains are intact and barely oxidized by terrestrial alteration. The appearance of the thin sections also supports not being exposed to significant terrestrial weathering.

Petrography (M. Weyrauch, A. Bischoff, IfP; J.M. Trigo-Rodríguez, CSIC-IEEC; J. Llorca, UPC): Contains minor chromite and ilmenite. The meteorite is fresh, and moderately shocked with shock veins.

Geochemistry: Olivine, Fa23.7±0.4; range Fa23.1-24.4, n=22. Low Ca pyroxene Fs20.4±0.2Wo1.5±0.2, range Fs20.0-20.7Wo1.1-2.0, n=19. Mean plagioclase: An10.3±0.5Ab84.3±1.2; range: An9.2-11.5Ab81.8-86.3, n=24.

Classification: L6 Ordinary chondrite

Specimens: 1 g at Institute of Space Sciences (CSIC-IEEC) plus two thin sections

Data from:
  MB103
  Table 0
  Line 0:
State/Prov/County:Castilla y Leon
Origin or pseudonym:town
Date:9 July 1931
Latitude:42°26.18'N
Longitude:5°33.63'W
Mass (g):5.48
Pieces:1
Class:L6
Shock stage:S3
Weathering grade:W0
Fayalite (mol%):23.7±0.4
Ferrosilite (mol%):20.4±0.2
Wollastonite (mol%):1.5±0.2
Magnetic suscept.:4.95±0.05
Classifier:M. Weyrauch and A. Bischoff, IfP; J.M. Trigo-Rodríguez, CSIC-IEEC; J.Llorca, UPC
Type spec mass (g):1.1
Type spec location:CSIC-IEEC
Main mass:private owner
Finder:Rosa González Pérez
Comments:Submitted by Josep M. Trigo-Rodríguez
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
UPC: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya Diagonal 647, ed. ETSEIB, 08028 Barcelona, Spain, Spain (institutional address; updated 3 May 2015)
CSIC-IEEC: Institute of Space Sciences (CSIC-IEEC), Campus UAB, Facultat de Ciències, Torre C-5 Parells, 2ª planta, E-08193 Bellaterra, Barcelona, Spain; Website (institutional address; updated 19 Dec 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography:

Spain
Coordinates:
     Recommended::   (42° 26' 11"N, 5° 33' 38"W)

Statistics:
     This is 1 of 5 approved meteorites from Castilla y Leon, Spain (plus 1 unapproved name)
     This is 1 of 31 approved meteorites from Spain (plus 10 unapproved names)
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