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Los Vientos 250
Basic information Name: Los Vientos 250
     This is an OFFICIAL meteorite name.
Abbreviation: LoV 250
Observed fall: No
Year found: 2018
Country: Chile
Mass:help 98.8 g
Classification
  history:
Recommended:  Diogenite    [explanation]

This is 1 of 418 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 2 Dec 2018
Writeuphelp
Writeup from MB 107:

Los Vientos 250 (LoV 250)        24°41.093’S, 69°50.533’W

Antofagasta, Chile

Find: 8 Feb 2018

Classification: HED achondrite (Diogenite)

Physical characteristics: Single stone partially covered by fusion crust with flow lines. Sawn surface shows a yellowish-orange interior with abundant opaque grains and metal.

Petrography: Thin section shows pyroxene (95 vol%) grains up to 6 mm in the long dimension with abundant shock veins. Chromite spinel grains (3 vol%) are well scattered through the sample and measure up to 3 mm and are usually associated to iron oxide. Metal grains (2 vol%) are in the range 1-3 mm. Olivine occurrence is rare. Additional minerals are Si polymorphs, FeS and Ti-spinel.

Geochemistry: Low-Ca pyroxene composition in the range Fs23.2-23.5Wo0.9-1.2 (mean Fs23.4±0.2Wo1.0±0.2, N=8), with FeO/MnO=26.0±1.2. Mean olivine composition is Fa35.3±0.2 (N=2). Chromite exhibits Cr/(Cr+Al) values of 0.82±0.05 (N=8). Metal is Ni-free. No plagioclase has been found in the section studied.

Data from:
  MB107
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:8 Feb 2018
Latitude:24°41.093'S
Longitude:69°50.533'W
Mass (g):98.8
Pieces:1
Class:Diogenite
Shock stage:High
Weathering grade:low
Classifier:J. Llorca, UPC
Type spec mass (g):21
Type spec location:UPC
Main mass:David Allepuz
Finder:David Allepuz-José Vicente Casado-Javier Alvarez
Comments:Field name: Met-2018-007; submitted by David Allepuz
Institutions
   and collections
UPC: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya Diagonal 647, ed. ETSEIB, 08028 Barcelona, Spain, Spain (institutional address; updated 3 May 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
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Geography:

Chile
Coordinates:
     Recommended::   (24° 41' 6"S, 69° 50' 32"W)

Statistics:
     This is 1 of 1270 approved meteorites from Antofagasta, Chile (plus 1 unapproved name) (plus 1 impact crater)
     This is 1 of 1297 approved meteorites from Chile (plus 7 unapproved names) (plus 1 impact crater)
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