Lunar TISSERLITINE 001 - Feldspathic Regolithic Breccia, Hydrothermally-Altered for Sale

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Lunar TISSERLITINE 001 - Feldspathic Regolithic Breccia, Hydrothermally-Altered For Sale

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Lunar TISSERLITINE 001 - Feldspathic Regolithic Breccia, Hydrothermally-Altered:
$513.00

TISSERLITINE 001

Tisserlitine 001

Found Sahara, December 2019

Coordinates : 21.325°N, 0.729°E

Achondrite, Lunar

Feldspathic Regolithic Breccia, Partially Hydrothermally-Altered

Specimen is a 6.85g slice

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\"Olivine grains in both studied specimens have been partially replaced by inhomogeneous phyllosilicate-rich assemblages, which apparently are hydroxylated (as evidenced by systematically low oxide analytical sums of 88-90 wt.% and absence of measurable F and Cl), and which are very Mn-deficient (yielding very elevated FeO/MnO ratios in the range 150-250)\"

Tisserlitine 001Basic informationName:Tisserlitine 001
This is an OFFICIAL meteorite name.
Abbreviation:There is no official abbreviation for this meteorite.
Observed fall:No
Year found:2020
Country:Mali
Mass:57.41 kg
Classification
history:Recommended:Lunar (feldsp. breccia)Comments:Approved 13 Jun 2020WriteupWriteup from MB 109:

Tisserlitine 00121.325°N,0.729°E

Gao, Mali

Find: 2019 Dec

Classification: Lunar meteorite (feldspathic breccia)

History: Beginning in December 2019 many similar dark stones were found together in the Kidal region of Mali, close to the border with Algeria. One very large stone (40026 g), another stone (4037 g) and 44 smaller stones (combined weight 3642 g) (total weight 47705 g) were purchased by Aziz Habibi in January 2020 from an Algerian dealer and subsequently acquired by Darryl Pitt. Independently, ten other stones of the same distinctive material (combined weight 8536 g) plus many smaller fragments (combined weight 1169 g) were purchased by Mbark Arjdal in February and March 2020 from a relative of the same Algerian dealer.

Physical characteristics: All specimens (many of which have a flattened slab-like form) lack fusion crust and exhibit medium-brown, \"knobby\" exterior surfaces. Interiors of stones have an overall tan to pinkish hue with obvious light gray, dark gray and whitish clasts plus some visible small grains of metal.

Petrography: (A. Irving,UWSand P. Carpenter,WUSL) Two separate endcut specimens were studied. Both are samples of the same breccia material, composed of mineral clasts of anorthite, olivine, pigeonite, subcalcic augite, augite and orthopyroxene, plus sparse lithic clasts of spinel troctolite, set in a fine grained microvesicular matrix containing accessory altered kamacite, troilite, taenite and pentlandite. Secondary calcite is present pervasively in one of the two specimens studied and in places may be replacing original glass. Olivine grains in both studied specimens have been partially replaced by inhomogeneous phyllosilicate-rich assemblages, which apparently are hydroxylated (as evidenced by systematically low oxide analytical sums of 88-90 wt.% and absence of measurable F and Cl), and which are very Mn-deficient (yielding very elevated FeO/MnO ratios in the range 150-250). Troctolitic clasts are composed predominantly of anorthite and olivine with accessory Cr-pleonaste, low-Ca pyroxene and/or higher-Ca pyroxene.

Geochemistry: Olivine (Fa17.3-32.1, FeO/MnO = 76-100, N = 15), anorthite (An95.4-99.0Or0.2-0.0, N = 7), pigeonite (Fs18.2-26.8Wo12.4-4.7, FeO/MnO = 47-54, N = 6), orthopyroxene (Fs16.0-21.6Wo2.2-3.7, FeO/MnO = 51-66, N = 4), subcalcic augite (Fs15.9Wo31.0, FeO/MnO = 41), augite (Fs7.6-7.9Wo42.9-45.6; Fs13.8Wo38.9; FeO/MnO = 36-48, N = 3). Troctolite clast: olivine (Fa18.2-21.2, FeO/MnO = 84-92, N = 4), anorthite (An97.7Or0.0), pleonaste (mg = 0.721, cr = 0.093).

Classification: Lunar (feldspathic regolithic breccia, partially hydrothermally-altered).

Specimens: 37.6 g in the form of two polished endcuts atUWB; remainder withDPittand Mr. M. Arjdal.

Data from:
MB109
Table 0
Line 0:State/Prov/County:GaoPlace of purchase:MaliDate:2019 (g):57410Pieces:manyClass:Lunar (feldsp. breccia)Shock stage:lowWeathering grade:moderateFayalite (mol%):18.2-32.1Ferrosilite (mol%):16.0-46.2; 18.2-26.8; 15.9; 7.6-7.9Wollastonite (mol%):1.7-3.7; 12.4-4.7; 31.0; 42.9-45.6Classifier:A. Irving, UWS, and P. Carpenter, WUSTLType spec mass (g):37.6Type spec location:UWBMain mass:A. Habibi/M. ArjdalComments:Work names AH 747 and Arj H10; submitted by A. IrvingInstitutions
and collectionsUWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States;Website(private address)

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