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NWA 7811 is a fresh meteorite classified eucrite polymict breccia of only 95 grams.
It was discovered in 2011 and classified by Anthony Irving in 2012.
The eucrites come from the Asteroid 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 is a fresh meteorite classified eucrite polymict breccia of only 95 grams.
It was discovered in 2011 and classified by Anthony Irving in 2012.
The eucrites come from the Asteroid 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 is a fresh meteorite classified eucrite polymict breccia of only 95 grams.
It was discovered in 2011 and classified by Anthony Irving in 2012.
The eucrites come from the Asteroid 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 is a fresh meteorite classified eucrite polymict breccia of only 95 grams.
It was discovered in 2011 and classified by Anthony Irving in 2012.
The eucrites come from the Asteroid 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 is a fresh meteorite classified as eucrite of only 135 grams.
It was discovered near Zagora in Morocco by Ahmed Enaji on September 13, 2020.
The eucrites come from the Asteroid 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 is a meteorite of eucrite type of only 21.4 grams, it was discovered by Zaid Oualguirah in 2019 in the Western Sahara.
Howardite meteorites come from the asteroid Vesta, an asteroid between Mars and Jupiter.
I am selling the main mass of 15.7 grams, a unique piece !
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.
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Camel Donga is a very beautiful eucrite discovered in Australia in 1984 in the plain of Nullarbor near Camel Donga.
The eucrites come from the Asteroid Vesta.
A very nice acquisition for your collection !
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The Zag meteorite fell in Morocco in the Western Sahara in August 1998.
It has been classified chondrite type H3-6.
In this meteorite scientists have found salt crystals (Halite), and black carbonaceous inclusions type CI similar to the composition of Ceres.
Some scientists imagine that Zag was formed in a cryovolcano of Ceres.
Zag is an exceptional meteorite !
NWA 7811 is a fresh meteorite classified eucrite polymict breccia of only 95 grams.
It was discovered in 2011 and classified by Anthony Irving in 2012.
The eucrites come from the Asteroid 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).
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NWA 7831 was discovered in March 2013.
This meteorite is a very beautiful and rare diogenite of the same type as Tataouine.
About 20 kilograms of this meteorite were found in the Western Sahara about 100 km northeast of Laâyoune in a place called Chwichiya.
Aydar 005 is a meteorite of type chondrite LL6.
This meteorite with a total weight of 230 grams was discovered by Esmail Elguirah in 2019.
This discovery is located in a concentration area called Aydar (Western Sahara).
This beautiful meteorite with a lacquered fusion crust is an unclassified eucrite.
The eucrites come from the Asteroid Vesta.