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Calama 005
Basic information Name: Calama 005
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2017
Country: Chile
Mass:help 380 g
Meteoritical Bulletin:  MB 107  (2018)  CO3
Recommended:  CO3    [explanation]

This is 1 of 639 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 17 Jan 2018
Writeup from MB 107:

Calama 005        22°23.56’S, 68°38.61’W

Antofagasta, Chile

Find: 25 March 2017

Classification: Carbonaceous chondrite (CO3)

Physical characteristics: 1 individual sample, 380 g, broken in several pieces, brown-black and covered with brown fusion crust.

Petrography (M. A. Ivanova, Vernad): meteorite consists of fine-grained matrix material, chondrules of Type I and II, and refractory inclusions. Average diameter of chondrules is 0.2 mm. Chondrules consist of olivine, pyroxene and plagioclase mesostasis. The minor phases are spinel, melilite, chromite, sulfides, kamacite, taenite, and tetrataenite.

Geochemistry: Mineral compositions and geochemistry (M. A. Ivanova, Vernad): Olivine (EMPA) is Fa22.2±18.4 (N=98) mol%, CaO 0.24±0.16 ; MnO 0.23±0.13 (both wt. %), pyroxene is presented by orthopyroxene (Fs11.6±10.8Wo1.8±1.4 (N=20)), augite (Fs4.5Wo41.9En53.5), diopside (Fs1.4Wo50.7), and Al-diopside (Fs4.3Wo51.7), Al2O3 16.3 wt%, TiO2 2.9 wt%. Mesostasis in chondrules is (wt%): SiO2 50.4; TiO2 0.42; Al2O3 22.8; Cr2O3 0.19; FeO 3.6; MnO 0.14; MgO 2.80; CaO 14.6; Na2O 2.95; K2O 0.19.

Classification (M. A. Ivanova, Vernad): Based on the texture, average chondrules size, mineralogy, and mineral chemistry the meteorite is a carbonaceous chondrite of CO3 type. The meteorite shows only minor weathering features.

Specimens: 1 piece (70 g) and a thin section are deposited in Vernad. The main mass with Mr. Timur Kryachko and Mt. Eugeniy Zakharchuk.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Desert
Date:25 March 2017
Mass (g):380
Fayalite (mol%):22.2±18.4 (N=98)
Ferrosilite (mol%):11.6±10.8 (N=20)
Wollastonite (mol%):1.8±1.4 (N=20)
Classifier:M. A. Ivanova, Vernad
Type spec mass (g):76
Type spec location:Vernad
Main mass:Mr. Timur Kryachko and Mt. Eugeniy Zakharchuk
Finder:Mr. Timur Kryachko and Mt. Eugenii Zakharchuk
Comments:Submitted by M. A. Ivanova
   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Photos from the Encyclopedia of Meteorites:
Timur Kryachko      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ryan Upchurch   
Solar Anamnesis         

     Recommended::   (22° 23' 34"S, 68° 38' 37"W)

     This is 1 of 2908 approved meteorites from Antofagasta, Chile (plus 10 unapproved names) (plus 1 impact crater)
     This is 1 of 2937 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)
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