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NWA 13202 Chondrite Ung #1 – 4,13 g

653,96 $

NWA 13202 is a very particular meteorite, it is classified as an ungrouped chondrite.

Visually it does not look like any chondrite because it is very rich in metal.

It is a unique meteorite !

Writeup from MB 109:

Northwest Africa 13202 (NWA 13202)

(Northwest Africa)

Purchased: 2020 Jan

Classification: Ungrouped chondrite

History: A very dense, metal-rich specimen, found as two naturally-broken pieces which fit together, was purchased in January 2020 by Mark Lyon from a dealer in Zagora, Morocco.

Physical characteristics: The broken surfaces on both pieces are coated by rusty terrestrial weathering products. Polished interior surfaces exhibit dominant fresh metal (with minimal staining) and subordinate interspersed silicate-rich regions.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) The specimen consists of two distinct interspersed components with overall proportions of ~75% metal and ~25% silicate-rich material. Metal-rich regions (up to 0.5 mm) are composed of 95% kamacite with 5% taenite, and contain fine grained metal plates ranging from 100 to 500 μm in diameter. Silicate-rich regions (up to 0.5 mm) contain a variety of chondrules (with apparent diameters ranging from ~100 to 1500 μm). Most chondrules are glass-bearing (PP, PO, POP and barred pyroxene types) but some are cryptocrystalline. Accessory phases in silicate-rich regions include kamacite, taenite, chromite, troilite, merrillite and chlorapatite.

Geochemistry: Olivine (Fa24.6±3.9, range Fa15.5-28.0, N = 16), low-Ca pyroxene (Fs15.8±1.4Wo1.5±0.9, range Fs14.6-19.6Wo0.6-3.5, N = 11), pigeonite (Fs14.8-15.1Wo8.3-9.1, N = 2), kamacite (Ni = 4.8-7.0 wt.%, N = 7), taenite (Ni = 16.5-21.3 wt.%, N = 3).

Classification: Chondrite (ungrouped, metal-rich). Paired with NWA 12273 and NWA 12379.

Specimens: 20.0 g including one polished slice at UWB; remainder with Mr. M. Lyon.

 

 

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Wad al Fayda 001 #17 CR2 – 63,4 g

749,09 $

Wad al Fayda 001 was discovered in 2018 by Lahsen Oussalah in the Western Sahara between Guelta Zemour and Oum Dreyga.

Scientific analysis conducted by Anthony Love determined that it is a CR2 type carbonaceous meteorite.

The price of this type of meteorite has decreased significantly, since in 2001 it could go up to 200 dollars per gram.

It is a rare type of meteorite on the market.
Comes with certificate.

 

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NWA 13881 CV3 #6- 36,5 g

237,80 $

NWA 13881 is a CV3 type meteorite with very large chondrules.

CV3 chondrites are characterized by the presence of large chondrules, abundant pre-solar isotopes and white inclusions called CAI’s.

CAI’s are mineral inclusions rich in calcium and aluminum, formed 4,567 to 4,571 million years ago they are the oldest materials in the Solar System.

 

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NWA 10463 Angrite #6 – 0,77 g

457,78 $

NWA 10463 is a rare angrite of only 203 grams.

According to the analyses this meteorite is unique and represents a new type of angrite.

To date only 40 angrites have been discovered in the world.

Scientists have suggested that the angrites might represent ejecta from Mercury, but later work has cast significant doubt on these claims.

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NWA 10463 Angrite #5 – 0,06 g

59,45 $

NWA 10463 is a rare angrite of only 203 grams.

According to the analyses this meteorite is unique and represents a new type of angrite.

To date only 40 angrites have been discovered in the world.

Scientists have suggested that the angrites might represent ejecta from Mercury, but later work has cast significant doubt on these claims.

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NWA 10463 Angrite #4 – 0,6 g

368,60 $

NWA 10463 is a rare angrite of only 203 grams.

According to the analyses this meteorite is unique and represents a new type of angrite.

To date only 40 angrites have been discovered in the world.

Scientists have suggested that the angrites might represent ejecta from Mercury, but later work has cast significant doubt on these claims.

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NWA 10463 Angrite #3 – 0,22 g

178,36 $

NWA 10463 is a rare angrite of only 203 grams.

According to the analyses this meteorite is unique and represents a new type of angrite.

To date only 40 angrites have been discovered in the world.

Scientists have suggested that the angrites might represent ejecta from Mercury, but later work has cast significant doubt on these claims.

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NWA 10463 Angrite #2 – 1,82 g

1.082,02 $

NWA 10463 is a rare angrite of only 203 grams.

According to the analyses this meteorite is unique and represents a new type of angrite.

To date only 40 angrites have been discovered in the world.

Scientists have suggested that the angrites might represent ejecta from Mercury, but later work has cast significant doubt on these claims.

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NWA 10463 Angrite #1 – 2,63 g

1.301,99 $

NWA 10463 is a rare angrite of only 203 grams.

According to the analyses this meteorite is unique and represents a new type of angrite.

To date only 40 angrites have been discovered in the world.

Scientists have suggested that the angrites might represent ejecta from Mercury, but later work has cast significant doubt on these claims.

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TARDA C2 Ung #27 – 0,21 g

149,82 $

TARDA is a meteorite that fell in Morocco on August 25, 2020.
This meteorite has been classified as C2 ungrouped, a rare type of very primitive carbonaceous.
Tagish lake is a meteorite of the same type and sells for over 1000 euros per gram.
This meteorite is composed of many very small fragments, beautiful pieces with crusts are rare.
Isotopic analyses show that some pieces have values close to CI chondrites, and other pieces have Yamato (CY) values..
An important meteorite at the scientific level in the years to come.

Writeup from MB 109 :

Tarda 31° 49′ 35″N, 4° 40′ 46″W

Morocco

Confirmed fall : 2020

Classification: Carbonaceous chondrite (C2, ungrouped)

Classification : (C. Agee, UNM; K. Ziegler, UNM; A. Irving, UWS; L. Garvie, ASU; D. Sheikh, FSU; P. Carpenter, WUSL; H. Chennaoui Aoudjehane, FSAC; M. Zolensky, JSC; P. Schmitt-Kopplin, HZM) Carbonaceous chondrite (C2-ungrouped). The bulk mineralogy is consistent with a petrologic grade 2, based on the predominance of smectite and serpentine together with the presence of anhydrous mafic silicates, AOA, and chondrules. The oxygen isotopes give a bimodal distribution of the δ18O-values, with one group having values somewhat like those of the CI chondrites, and the other group like values for the Yamato-type (CY) carbonaceous chondrites (King et al., 2019). However, Δ17O values are lower than those for CI and CY chondrites, and plot below the TFL. These isotopic values do not overlap with those of any established carbonaceous chondrite group, hence the ungrouped designation.

Specimens : 18.4 g including one polished thin section and one polished thick section at UWB; 21g and one polished thin section at UNM; 7 g provided by A. Aaronson and 6 g provided by J. Redelsperger at FSAC; 20 g at the Ministry of Energy, Mines and Environment, Rabat, Morocco provided by A. Aaronson; total 628 g with A. Aaronson (including 99 g, 82.4 g and 52.6 g stones); 540 g with M. Farmer and A. Karl, 260 g with J. Poblador; 480 g with D. Dickens; 145 g with M. Oulkouch; 146 g with J. Redelsperger; 31 g with B. Hoefnagels.

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El Mrira 001 H4-melt breccia #1 – 21,7 g

148,63 $

El Mrira 001 is an ordinary H4 melt breccia chondrite discovered in Morocco in 2019.

What makes this meteorite special is its texture and its rarity; only 9 meteorites of this type classified to date.

El Mrira 001 28.467°N, 8.920°W

Morocco

Find: 2019 Jan

Classification: Ordinary chondrite (H4, melt breccia)

History: The specimens (total weight 6600 g) were found together in January 2019 in southern Morocco at 28.467°N, 8.920°W and purchased by Jesper Grønne in 2019 from a dealer in Agadir, Morocco.

Physical characteristics: A notable feature of these specimens is the presence of abundant spherical to ellipsoidal vesicles and larger vugs (up to 14 mm across) in the fine grained melt-textured matrix.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Very fresh specimen consisting of equilibrated Type 4 chondrite clasts in a very fine grained matrix with prominent vesicles (some ellipsoidal and preferentially aligned). Lithic clasts are shock-darkened and consist of well-formed chondrules in a relatively coarse grained, recrystallized matrix containing relatively abundant kamacite plus taenite, troilite, merrillite, chlorapatite and chromite. Clasts have shock stage S4. The vesicular matrix contains distributed small silicate mineral clasts set in a partly glassy, melt-textured groundmass with dispersed composite metal+troilite spherules (up to 1.5 mm in size).

Geochemistry: Olivine (Fa18.5±0.3, range Fa17.9-18.9, N = 6), low-Ca pyroxene (Fs16.5±0.5Wo1.2±0.2, range Fs16.2-17.3Wo1.0-1.4, N = 5), subcalcic augite (Fs9.1Wo36.3), augite (Fs6.0±0.6Wo46.1±0.3, range Fs5.5-6.4Wo46.3-45.9, N = 2), plagioclase (Ab64.2An34.7Or1.1).

Classification: Ordinary chondrite (H4-melt breccia).

Specimens: 20.1 g including one polished thin section at UWB; remainder with Mr. J. Grønne.

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Fezzou 001 #17 R4- 2,6 g

39,24 $

Fezzou 001 is a rare meteorite of type chondrite rumuruti R4.
This meteorite of only 154 grams was discovered in Morocco by Rjdali Hmou and Mohamed Taouch on August 1, 2018.

This rumuruti has the particularity to be a little magnetic and not brecciated.

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Fezzou 001 #16 R4- 3,3 g

51,13 $

Fezzou 001 is a rare meteorite of type chondrite rumuruti R4.
This meteorite of only 154 grams was discovered in Morocco by Rjdali Hmou and Mohamed Taouch on August 1, 2018.

This rumuruti has the particularity to be a little magnetic and not brecciated.

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Fezzou 001 #15 R4- 4,8 g

73,72 $

Fezzou 001 is a rare meteorite of type chondrite rumuruti R4.
This meteorite of only 154 grams was discovered in Morocco by Rjdali Hmou and Mohamed Taouch on August 1, 2018.

This rumuruti has the particularity to be a little magnetic and not brecciated.

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Fezzou 001 #14 R4- 4,7 g

72,53 $

Fezzou 001 is a rare meteorite of type chondrite rumuruti R4.
This meteorite of only 154 grams was discovered in Morocco by Rjdali Hmou and Mohamed Taouch on August 1, 2018.

This rumuruti has the particularity to be a little magnetic and not brecciated.

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Fezzou 001 #13 R4- 5 g

77,29 $

Fezzou 001 is a rare meteorite of type chondrite rumuruti R4.
This meteorite of only 154 grams was discovered in Morocco by Rjdali Hmou and Mohamed Taouch on August 1, 2018.

This rumuruti has the particularity to be a little magnetic and not brecciated.

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Fezzou 001 #12 R4- 5,3 g

80,86 $

Fezzou 001 is a rare meteorite of type chondrite rumuruti R4.
This meteorite of only 154 grams was discovered in Morocco by Rjdali Hmou and Mohamed Taouch on August 1, 2018.

This rumuruti has the particularity to be a little magnetic and not brecciated.

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Vaca Muerta Mésosidérite #22 – 1,9 g

15,46 $

Vaca Muerta, in Spanish “Dead Cow” is a meteorite of mesosiderite type which was discovered in Chile in 1861.

This meteorite would have arrived on Earth about 2000 years ago.

The parent body of mesosiderites could be the asteroid Psyche, it is over 200 km in diameter.

It is a classic in any good collection.

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