Affichage de 19–36 sur 103 résultats

Zagora 006 Eucrite Bréchique #15 – 4,9 g

38,40

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #14 – 2,1 g

16,80

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #13 – 4,7 g

37,20

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #12 – 4,9 g

38,40

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #11 – 6,2 g

48,00

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #10 – 11 g

86,40

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Out of stock

Zagora 006 Eucrite Bréchique #9 – 4,5 g

36,00

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #8 – 5,8 g

45,60

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #7 – 9,9 g

78,00

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #5 – 13 g

102,00

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Zagora 006 Eucrite Bréchique #4 – 10 g

78,00

Zagora 006 est une météorite classée eucrite bréchique de 1380 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Dich et Hssain Azmamar en janvier 2021.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 006        30°18’46.21″N, 5°32’45.16″W

South, Morocco

Find: 2021 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Found by Ahmed Dich and Hssain Azmamar in January 2021. Bought by Jean Redelsperger from Zaid Oualguirah in February 2021.

Physical characteristics: Partially crusted stone with a light grey interior

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mineral and lithic gabbroic clasts. Main minerals are pyroxene (some exsolved) and plagioclase with grain size in the 100 to 500 µm range. Accessory minerals: metal (to 150 µm), chromite (to 100 µm), ilmenite (to 150 µm), troilite (to 200 µm).

Geochemistry: Low-Ca pyroxene Fs50.7Wo3.8, Fs48.5Wo6.4. Ca-pyroxene Fs38.8Wo20.5, Fs23.0Wo41.3, Fs23.3Wo41.4. Pyroxene FeO/MnO 31.8±1.4 (n=5). Plagioclase An92.5Ab7.3Or0.2, An80.2Ab18.8Or0.9.

Classification: Achondrite (eucrite, brecciated)

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Jiddat al Harasis 626 Eucrite, polymict #1 – 6 g

264,00

Cette très belle météorite a été découverte par Marie Gerbet en 2010 dans le Jiddat al Harasis, un désert rocheux au nord de la région de Dhofar et au centre-sud du Sultanat d’Oman.

Cette météorite a été utilisée par la NASA pour calibrer le spectromètre de la sonde DAWN qui a étudié l’astéroïde Vesta !

Out of stock

NWA 7811 Eucrite #5 – 1,3 g

19,20

NWA 7811 est une fraîche météorite classée eucrite polymict breccia de seulement 95 grammes.

Elle a été découverte en 2011 et classifiée par Anthony Irving en 2012.

Les eucrites proviennent de l’Astéroïde Vesta.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia composed mainly of crystal debris from several different basaltic eucrite and gabbroic eucrite protoliths (with some polymineralic clasts of same), plus sparse clasts of diogenite and diogenitic orthopyroxene. Minerals include exsolved pigeonite, orthopyroxene, clinopyroxene, calcic plagioclase, silica polymorph, ilmenite, troilite, chromite, and fayalite.

Geochemistry: Diogenitic orthopyroxene (Fs24.1Wo1.5; FeO/MnO = 34), orthopyroxene (Fs49.9Wo2.5; FeO/MnO = 31), clinopyroxene (Fs20.8-25.8Wo45.1-44.6; FeO/MnO = 32-35), host orthopyroxene (Fs61.6Wo1.8; FeO/MnO = 34), clinopyroxene exsolution lamellae (Fs21.6Wo43.8; FeO/MnO = 34), olivine (Fa92.7).

NWA 7811 Eucrite #4 – 9,8 g

147,60

NWA 7811 est une fraîche météorite classée eucrite polymict breccia de seulement 95 grammes.

Elle a été découverte en 2011 et classifiée par Anthony Irving en 2012.

Les eucrites proviennent de l’Astéroïde Vesta.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia composed mainly of crystal debris from several different basaltic eucrite and gabbroic eucrite protoliths (with some polymineralic clasts of same), plus sparse clasts of diogenite and diogenitic orthopyroxene. Minerals include exsolved pigeonite, orthopyroxene, clinopyroxene, calcic plagioclase, silica polymorph, ilmenite, troilite, chromite, and fayalite.

Geochemistry: Diogenitic orthopyroxene (Fs24.1Wo1.5; FeO/MnO = 34), orthopyroxene (Fs49.9Wo2.5; FeO/MnO = 31), clinopyroxene (Fs20.8-25.8Wo45.1-44.6; FeO/MnO = 32-35), host orthopyroxene (Fs61.6Wo1.8; FeO/MnO = 34), clinopyroxene exsolution lamellae (Fs21.6Wo43.8; FeO/MnO = 34), olivine (Fa92.7).

NWA 7811 Eucrite #3 – 10,2 g

151,20

NWA 7811 est une fraîche météorite classée eucrite polymict breccia de seulement 95 grammes.

Elle a été découverte en 2011 et classifiée par Anthony Irving en 2012.

Les eucrites proviennent de l’Astéroïde Vesta.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia composed mainly of crystal debris from several different basaltic eucrite and gabbroic eucrite protoliths (with some polymineralic clasts of same), plus sparse clasts of diogenite and diogenitic orthopyroxene. Minerals include exsolved pigeonite, orthopyroxene, clinopyroxene, calcic plagioclase, silica polymorph, ilmenite, troilite, chromite, and fayalite.

Geochemistry: Diogenitic orthopyroxene (Fs24.1Wo1.5; FeO/MnO = 34), orthopyroxene (Fs49.9Wo2.5; FeO/MnO = 31), clinopyroxene (Fs20.8-25.8Wo45.1-44.6; FeO/MnO = 32-35), host orthopyroxene (Fs61.6Wo1.8; FeO/MnO = 34), clinopyroxene exsolution lamellae (Fs21.6Wo43.8; FeO/MnO = 34), olivine (Fa92.7).

NWA 7811 Eucrite #2 – 20,7 g

283,20

NWA 7811 est une fraîche météorite classée eucrite polymict breccia de seulement 95 grammes.

Elle a été découverte en 2011 et classifiée par Anthony Irving en 2012.

Les eucrites proviennent de l’Astéroïde Vesta.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia composed mainly of crystal debris from several different basaltic eucrite and gabbroic eucrite protoliths (with some polymineralic clasts of same), plus sparse clasts of diogenite and diogenitic orthopyroxene. Minerals include exsolved pigeonite, orthopyroxene, clinopyroxene, calcic plagioclase, silica polymorph, ilmenite, troilite, chromite, and fayalite.

Geochemistry: Diogenitic orthopyroxene (Fs24.1Wo1.5; FeO/MnO = 34), orthopyroxene (Fs49.9Wo2.5; FeO/MnO = 31), clinopyroxene (Fs20.8-25.8Wo45.1-44.6; FeO/MnO = 32-35), host orthopyroxene (Fs61.6Wo1.8; FeO/MnO = 34), clinopyroxene exsolution lamellae (Fs21.6Wo43.8; FeO/MnO = 34), olivine (Fa92.7).

Zagora 003 Eucrite #14 – 89,8 g

804,00

Zagora 003 est une fraîche météorite classée eucrite de seulement 135 grammes.

Elle a été découverte près de Zagora au Maroc par Ahmed Enaji le 13 septembre 2020.

Les eucrites proviennent de l’Astéroïde Vesta.

Writeup from MB 110:

Zagora 003        30°20’51.94″N, 5°36’41.79″W

Morocco

Find: 2020 Sep 13

Classification: HED achondrite (Eucrite)

History: Found by Ahmed Enaji on September 13, 2020. Bought from Zaid Oualguirah in 2020.

Physical characteristics: Several fusion crusted pieces with grey interior.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with grain size about 500 µm. It contains melt rock areas, and other areas with variolitic texture. Main minerals are pyroxene and plagioclase. Other minerals: metal, troilite, chromite.

Geochemistry: Low-Ca pyroxene Fs34.1±0.8Wo5.7±1.1, FeO/MnO = 28.6±2.4 (n=4). Plagioclase An93.3±0.6Ab6.4±0.6Or0.3±0.1 (n=5). Chromite Cr# = 0.78 (n=1).

Classification: Achondrite (eucrite).

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

Jdiriya 003 Eucrite #1 – 15,7 g

264,00

Jdiriya 003 est une météorite de type eucrite de seulement 21,4 grammes, elle a été découverte par Zaid Oualguirah en 2019 dans le Sahara Occidental.

Les météorites de type Howardite proviennent de l’astéroïde Vesta, un astéroïde qui se trouve entre Mars et Jupiter.

Je vends la masse principale de 15,7 grammes, une pièce unique !

Writeup from MB 109:

Jdiriya 003        27°36’59.42″N, 10°26’48.85″W

Saguia el Hamra, Western Sahara

Find: 2019 Dec 18

Classification: HED achondrite (Eucrite)

History: Found by Zaid Oualguirah on 2019 Dec 18.

Physical characteristics: A single crusted stone. Cut surface reveals a light homogeneous interior with ~500 µm plagioclase and pyroxene grains.

Petrography: ( J. Gattacceca, CEREGE) Igneous rock with subophitic texture. Main minerals are pyroxene (with both fine- and large-scale exsolutions) and plagioclase, with typical grain size 400 µm. Other minerals: chromite, ilmenite, metal, troilite, silica.

Geochemistry: Low-Ca pyroxene Fs58.0±2.8Wo6.0±3.3 (n=6), Ca-pyroxene exsolutions Fs26.2Wo44.5 (n=2), FeO/MnO 31.2±1.9 (n=8). Plagioclase An88.4±0.6Ab11.3±0.6Or0.3±0.1 (n=6).

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.