Showing 955–972 of 1134 results

Out of stock

Montoume #2 – 100 g

17,83 $
An impactite is a terrestrial rock modified by the impact of a large meteorite.
These rocks contain an agglomeration of fallout dust and fragments.
The Rochechouart impactites were formed as a result of a meteorite impact about 207 million years ago in New Aquitaine in the Rochechouart district.
The impact crater of the Rochechouart meteorite is called “Astroblème” because it is no longer visible following erosion.
There are several types of rocks :
Les brèches de type Babaudus, riche en verre à texture fluidale et en vacuoles
The “breccias” of Montoume type, red because of their richness in iron, metal supposed to come from the asteroid.
The “breccias” of Chassenon type, debris of glass of greenish tint.
The “breccias” of Rochechouart type, contain little glass and are constituted of elements of varied size and lithology.

 

Out of stock

El Blida 006 LL7 #1 – 74 g

523,18 $

El Blida 006 is an oriented meteorite of 97 grams of type LL7. It was discovered near Zagora in Morocco in 2020 by Ahmed Najii.

It is a strongly crystallized brecciated meteorite with a beautiful fusion crust.

I sell the main mass of 74 grams, the rest was used for the classification, so it is a unique piece !

Writeup from MB 110 :

El Blida 006 29°51’32.98″N, 5°58’38.53″W

Morocco

Find: 2020

Classification: Ordinary chondrite (LL7)

History: Found by Ahmed Najii in 2020. Bought from Zaid Oualguirah in 2020 by Jean Redelsperger.

Physical characteristics: One oriented fully crusted stone.

Petrography: (J. Gattacceca, CEREGE) Highly recrystallized brecciated chondrite. Lithic clasts show triple junction, plagioclase to 200 µm, and only rare relict chondrules. Opaque minerals are metal and troilite.

Geochemistry: Olivine Fa30.6 (n=1). Orthopyroxene Fs25.9±0.1Wo2.1±0.1 (n=3).

Classification: Ordinary chondrite (LL7, brecciated). Type 7 based on the Wo content of orthopyroxene and the texture.

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

Out of stock

NWA 13486 Martian #3 – 0,5 g

89,17 $

Nwa 13486 is a rare meteorite from Mars of only 21 grams.

This meteorite discovered in Algeria has been classified as a shergottite.

Writeup from MB 109:

Northwest Africa 13486 (NWA 13486)

Algeria

Find: 2019

Classification: Martian meteorite (Shergottite)

Physical characteristics: Light grey relatively coarse crystalline rock.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with doleritic texture. Main minerals are zoned pyroxene and maskelynite, with grain size ~500 μm. Other minerals: silica polymorph (100 μm), Fe-Ti oxides (100 μm).

Geochemistry: Pyroxene Fs38.4±11.4Wo19.1±7.3, FeO/MnO = 32.6±3.4 (n=6). Plagioclase An61.3Ab38.3Or0.4 (n=2).

Classification: Achondrite (shergottite).

Specimens: Type specimen at CEREGE. Main mass with J. Bassemon.

Out of stock

NWA 13486 Martian #2 – 1,3 g

200,95 $

Nwa 13486 is a rare meteorite from Mars of only 21 grams.

This meteorite discovered in Algeria has been classified as a shergottite.

Writeup from MB 109:

Northwest Africa 13486 (NWA 13486)

Algeria

Find: 2019

Classification: Martian meteorite (Shergottite)

Physical characteristics: Light grey relatively coarse crystalline rock.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with doleritic texture. Main minerals are zoned pyroxene and maskelynite, with grain size ~500 μm. Other minerals: silica polymorph (100 μm), Fe-Ti oxides (100 μm).

Geochemistry: Pyroxene Fs38.4±11.4Wo19.1±7.3, FeO/MnO = 32.6±3.4 (n=6). Plagioclase An61.3Ab38.3Or0.4 (n=2).

Classification: Achondrite (shergottite).

Specimens: Type specimen at CEREGE. Main mass with J. Bassemon.

Out of stock

NWA 13486 Martian #1 – 1,7 g

303,20 $

Nwa 13486 is a rare meteorite from Mars of only 21 grams.

This meteorite discovered in Algeria has been classified as a shergottite.

Writeup from MB 109:

Northwest Africa 13486 (NWA 13486)

Algeria

Find: 2019

Classification: Martian meteorite (Shergottite)

Physical characteristics: Light grey relatively coarse crystalline rock.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with doleritic texture. Main minerals are zoned pyroxene and maskelynite, with grain size ~500 μm. Other minerals: silica polymorph (100 μm), Fe-Ti oxides (100 μm).

Geochemistry: Pyroxene Fs38.4±11.4Wo19.1±7.3, FeO/MnO = 32.6±3.4 (n=6). Plagioclase An61.3Ab38.3Or0.4 (n=2).

Classification: Achondrite (shergottite).

Specimens: Type specimen at CEREGE. Main mass with J. Bassemon.

Out of stock

Tatahouine #1 Diogénite – 2,4 g

53,51 $

The Tatahouine meteorite is a very beautiful achondrite diogenite meteorite, which fell on June 27, 1931 at 01:30 am, 4 kilometers northeast of the village of Foum Tataouine in Tunisia. The explosion woke up the whole population and also the French garrison. The next day French legionnaires found some fragments.

The diogenite meteorites come from the asteroid Vesta.
Out of stock

Zagora 003 Eucrite #5 – 2 g

30,91 $

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.

Zagora 003 Eucrite #4 – 23,9 g

307,96 $

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.

Out of stock

Zagora 003 Eucrite #3 – 11,1 g

153,38 $

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.

Out of stock

Zagora 003 Eucrite #2 – 1,2 g

19,02 $

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.

Zagora 003 Eucrite #1 – 4,5 g

66,59 $

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.

Out of stock

Lahmada 048 #3 Ureilite – 4,7 g

84,42 $

Lahmada 048 is an achondrite ureilite meteorite of only 59 grams discovered in the Western Sahara in a concentration area called Lahmada.

It was discovered on September 23, 2020 by Brahim Elguirah.

Lahmada 048 certainly contains diamonds in view of the difficulties to cut it.

The diamonds, which are rarely larger than a few micrometers in diameter, are probably the result of high-pressure shock waves produced by the collision of the parent body of the ureilites with other asteroids.

Writeup from MB 110:

Lahmada 048 27°24’20.78″N, 9°51’13.07″W

Saguia el Hamra, Western Sahara

Find: 2020 Sep 23

Classification: Ureilite

History: The meteorite was found by Brahim Elguirah. The meteorite was bought by Jean Redelsperger from Zaid Oualguirah in 2020.

Physical characteristics: A single dark brown stone

Petrography: (J. Gattacceca, CEREGE) Aggregate of blocky olivine grains (grain size 800 µm) with reduced margins. Metal, originally present along olivine rims, is almost entirely replaced by terrestrial weathering products. Contains a significant amount of carbon material, likely diamonds in view of the extreme difficulty to saw the rock.

Geochemistry: Olivine Fa21.9±0.4, CaO 0.36±0.02 wt%, CrO3 0.65±0.02, FeO/MnO = 53.4±7.9 (n=4). Olivine rim Fa5.1 (n=1).

Classification: Ureilite

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

 

Out of stock

Lahmada 048 #1 Ureilite – 23,3 g

414,97 $

Lahmada 048 is an achondrite ureilite meteorite of only 59 grams discovered in the Western Sahara in a concentration area called Lahmada.

It was discovered on September 23, 2020 by Brahim Elguirah.

Lahmada 048 certainly contains diamonds in view of the difficulties to cut it.

The diamonds, which are rarely larger than a few micrometers in diameter, are probably the result of high-pressure shock waves produced by the collision of the parent body of the ureilites with other asteroids.

Writeup from MB 110:

Lahmada 048 27°24’20.78″N, 9°51’13.07″W

Saguia el Hamra, Western Sahara

Find: 2020 Sep 23

Classification: Ureilite

History: The meteorite was found by Brahim Elguirah. The meteorite was bought by Jean Redelsperger from Zaid Oualguirah in 2020.

Physical characteristics: A single dark brown stone

Petrography: (J. Gattacceca, CEREGE) Aggregate of blocky olivine grains (grain size 800 µm) with reduced margins. Metal, originally present along olivine rims, is almost entirely replaced by terrestrial weathering products. Contains a significant amount of carbon material, likely diamonds in view of the extreme difficulty to saw the rock.

Geochemistry: Olivine Fa21.9±0.4, CaO 0.36±0.02 wt%, CrO3 0.65±0.02, FeO/MnO = 53.4±7.9 (n=4). Olivine rim Fa5.1 (n=1).

Classification: Ureilite

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

 

Out of stock

Lahmada 048 #2 Ureilite – 2,5 g

45,18 $

Lahmada 048 is an achondrite ureilite meteorite of only 59 grams discovered in the Western Sahara in a concentration area called Lahmada.

It was discovered on September 23, 2020 by Brahim Elguirah.

Lahmada 048 certainly contains diamonds in view of the difficulties to cut it.

The diamonds, which are rarely larger than a few micrometers in diameter, are probably the result of high-pressure shock waves produced by the collision of the parent body of the ureilites with other asteroids.

Writeup from MB 110:

Lahmada 048 27°24’20.78″N, 9°51’13.07″W

Saguia el Hamra, Western Sahara

Find: 2020 Sep 23

Classification: Ureilite

History: The meteorite was found by Brahim Elguirah. The meteorite was bought by Jean Redelsperger from Zaid Oualguirah in 2020.

Physical characteristics: A single dark brown stone

Petrography: (J. Gattacceca, CEREGE) Aggregate of blocky olivine grains (grain size 800 µm) with reduced margins. Metal, originally present along olivine rims, is almost entirely replaced by terrestrial weathering products. Contains a significant amount of carbon material, likely diamonds in view of the extreme difficulty to saw the rock.

Geochemistry: Olivine Fa21.9±0.4, CaO 0.36±0.02 wt%, CrO3 0.65±0.02, FeO/MnO = 53.4±7.9 (n=4). Olivine rim Fa5.1 (n=1).

Classification: Ureilite

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

 

Out of stock

Allende CV3 #9 – 3,4 g

141,49 $

The Allende meteorite fell in Mexico in 1969.

It is often considered as the “Rosetta Stone” of planetologists, because it has improved our knowledge on the origins of our solar system. This meteorite was formed before our planet, in the very first moments of the solar system. It preserves in its heart the traces of the nebula which generated the Sun and its procession of planets.

Out of stock

Allende CV3 #8 – 2,8 g

116,52 $

The Allende meteorite fell in Mexico in 1969.

It is often considered as the “Rosetta Stone” of planetologists, because it has improved our knowledge on the origins of our solar system. This meteorite was formed before our planet, in the very first moments of the solar system. It preserves in its heart the traces of the nebula which generated the Sun and its procession of planets.

Out of stock

Allende CV3 #7 – 1,6 g

68,96 $

The Allende meteorite fell in Mexico in 1969.

It is often considered as the “Rosetta Stone” of planetologists, because it has improved our knowledge on the origins of our solar system. This meteorite was formed before our planet, in the very first moments of the solar system. It preserves in its heart the traces of the nebula which generated the Sun and its procession of planets.

Out of stock

Allende CV3 #6 – 1,8 g

77,29 $

The Allende meteorite fell in Mexico in 1969.

It is often considered as the “Rosetta Stone” of planetologists, because it has improved our knowledge on the origins of our solar system. This meteorite was formed before our planet, in the very first moments of the solar system. It preserves in its heart the traces of the nebula which generated the Sun and its procession of planets.