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Tichiya 003
Basic information Name: Tichiya 003
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Western Sahara
Mass:help 861 g
Classification
  history:
Recommended:  Lunar    [explanation]

This is 1 of 96 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 6 May 2021
Writeuphelp
Writeup from MB 110:

Tichiya 003        24°21.473’N, 13°53.259’W

Rio de Oro, Western Sahara

Find: 2020 Nov 14

Classification: Lunar meteorite

History: The samples were found by Zaid Oualguirah in Western Sahara on November 14, 2020.

Physical characteristics: Exterior of the sample is light-orangish gray in color and shows voids, some of which are circular in profile. The cut face shows the interior is darker gray and shows a brecciated texture.

Petrography: escription and Classification (A. Love, App) Sample is a breccia composed of dispersed small (avg. L.D. 283 µm, n=47) lithic and mineral clasts set within a partly vesicular, devitrified glassy impact melt rock matrix. Lithic clasts are poikilitic-textured troctolites. Mineral clasts are dominantly anorthite with minor olivine, some of which is zoned. Definitive vesicles were absent in the thin section. Additional minerals are: chromite, ilmenite, secondary barite and calcite.

Geochemistry: Olivine (Fa30.2±2.7, Fe/Mn=78.7±4.5, n=10); plagioclase (An97.8±0.3Or0.0, n=10).

Classification: Lunar (feldspathic melt breccia) Based on plagioclase composition and textures sample is a lunar achondrite. Melt rock matrix and shock effects in clasts indicate sample is a melt rock matrix breccia.

Specimens: Jean Redelsperger holds the 260 g main mass. Zaid Oualguirah holds 311 g. An individual weighing 20.75 g and a polished thin section are on deposit at App.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Date:2020 Nov 14
Latitude:24°21.473'N
Longitude:13°53.259'W
Mass (g):861
Pieces:20
Class:Lunar
Shock stage:A-S2
Weathering grade:moderate
Fayalite (mol%):30.2±2.7
Magnetic suscept.:2.01
Classifier:A. Love, App
Type spec mass (g):20.75
Type spec location:App
Main mass:Jean Redelsperger
Finder:Zaid Oualguirah
Comments:Submitted by Anthony Love
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

Western Sahara
Coordinates:
     Recommended::   (24° 21' 28"N, 13° 53' 16"W)

Statistics:
     This is 1 of 40 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 239 approved meteorites from Western Sahara (plus 19 unapproved names)
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