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Martian Meteorites | Lunar Rocks | HED Group | PAC Group | Carbonaceous Chondrites | Rare Chondrites Last Updated: 7 May 2018

CV Group

The chondrites of this group are named for their type specimen, the meteorite of Vigarano, which fell in Italy in 1910. The CV group has about 50 members, but the number of actual CV falls has to be estimated to be somewhat lower since many of them are paired finds from the hot deserts of Africa and the blue-ice fields of Antarctica.

Most CV chondrites belong to petrologic type 3, and only one has been found to belong to type 2 as well as one other that has been classified as type 4. The structure and composition of these carbonaceous chondrites is more close to that of ordinary chondrites. In a dark-grey matrix of mainly iron-rich olivine, the meteorites of the CV group exhibit large, well-defined chondrules that are made of magnesium-rich olivine, often surrounded by iron sulfide. The meteorites of this group also contain white, irregular inclusions of different size that often make up more than 5% of the meteorite. These inclusions are high-temperature minerals called CAIs (calcium-aluminium inclusions) and are composed of silicates and oxides of calcium, aluminium, and titanium.

These large CAIs, characteristic of CV chondrites, have been intensely studied in the famous meteorite of Allende. Allende fell in Mexico in 1969, shortly before Neil Armstrong took his first step on the Moon. The CAIs of Allende contain fine-grained, microscopic diamonds - and those diamonds exhibit strange isotopic signatures that point to an origin outside of our solar system. They are interstellar grains that have proven to be older than the earth and the sun, and probably they are the product of a nearby supernova, of a dying star that made his last breath when our own system formed. Traces of this supernova have been trapped within the CAIs and preserved in the CV group and other carbonaceous chondrites to this day.


Northwest Africa 1465

Western Sahara

Carbonaceous chondrite (CV3 anomalous)

Many pieces totalling 3000 g and mostly covered with fusion crust were found  in 2001

 

NWA 1465 - 00

440 gr

Large piece with an open window, nice primitive type !

Price on request

NWA 1465 - 01

22.84 gr

A wonderfull endcut with so nice chondrule !

SOLD

NWA 1465 - 02

16.24 gr

A complete thick slice !

400 $

NWA 1465 - 03

8.47 gr

A very nice endcut !

210 $

 

NWA 1465 - 04

11.46 gr

Nice thick slice with a patch of crust

280 $

NWA 1465 - 05

12.22 gr

Interesting CV3 showing colored chondrules and CAI inclusions !

SOLD

NWA 1465 - 06

6.62 gr

A very nice tiny endcut !

SOLD

NWA 1465 - 07

2.84 gr

A thin slice showing so nice chondrules !

SOLD

 

Chondrites for Sale :
>Carbonaceous Chondrites
   > CM Group (Mighei Type)
   > CO Group (Ornans Type)
   > CV Group (Vigarano Type)
   > CK Group (Karoonda Type)
   > CR Group (Renazzo Type)
   > CH Group (High-Metal Type)
   > CB Group (Bencubbinites)
   > CI1 Group (Ivuna Type)
>Ordinary chondrite
 
>H Group
   >L Group
   >LL Group

> Rare Chondrites
   > E Group (Enstatite Type)
   > R Group (Rumuruti Type)
   > Impact Melt Breccia IMB
> Oriented Chondrites
Achondrites for Sale :
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   > Chassignite
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> Primitive Achondrites 
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> Other rares Achondrites
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Iron and Stony-Iron For Sale
   > Iron
   > Pallasites
   > Mesosiderites & Silicated
tektites and impact glass:
> Spinning Tektites
> Lybian Glass
> Moldavite/carved moldavite
> Moldavite pendant

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