Carbonaceous Chondrites

UMin Collection

Samples Transferred to the Smithsonian Institution

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CK Chondrites

Name: NWA 16790

Classification: CK4

Locality: Algeria, 2023 find

Mass at UMin: 71.3

Available for Request: Yes

Notes: UMin has a slice and end cut, as well as a polished resin mount suitable for SEM/EPMA.

Meteoritical Bulletin Database

Name: NWA 17065

Classification: CK5

Locality: Algeria, 2023 find

Mass at UMin: 32g

Available for Request: Yes

Notes: UMin has several slices and polished resin mount suitable for SEM/EPMA.

Meteoritical Bulletin Database

CM Chondrites

$A number of dark black stones with smooth exteriors and rough fractured surfaces. The inside of the stones is black with small white flecks.$

Backscattered electron image showing sparse chondrules and abundant matrix.

Name: NWA 17272

Classification: CM2

Locality: Algeria, 2024 find

Mass at UMin: 19g

Available for Request: Yes

Notes: UMin has a number of small stones and a polished resin mount containing three pieces suitable for SEM/EPMA. There is some evidence of brecciation in this sample.

Meteoritical Bulletin Database

CO Chondrites

Three rounded stones almost completely covered by black fusion crusts. The inside of the stone is visible in some places and is a mid-grey color.

Backscattered electron image of Boorama with small, tightly packed chondrules and metal dispersed throughout.

Name: Boorama

Classification: CO3

Locality: Somalia, 2024 fall

Mass at UMin: 27.3 g

Available for Request: Yes

Notes: UMin has three small stones with almost complete fusion crusts and a polished mount suitable for SEM/EPMA.

Meteoritical Bulletin Database

CV Chondrites

A dark brown stone with round chondrules and large white CAIs, and a dark rounded clast in the center.

Name: NWA 16800

Classification: CV3

Locality: Algeria, 2023 find

Mass at UMin: 21.9g

Available for Request: No (with exceptions)

Notes: UMin has a single slice of NWA 16800 featuring a distinct clast in the center. Due to lack of material above the type specimen weight, NWA 16800 is not available for request unless it can be returned whole and undamaged.

Meteoritical Bulletin Database

A slice of a dark brown stone with orange-brown chondrules and large white CAIs.

Backscattered electron image showing large chondrules set in a brighter matrix.

Name: NWA 17063

Classification: CV3

Locality: Algeria, 2023 find

Mass at UMin: 27.4g

Available for Request: Yes

Notes: UMin has a slice of NWA 17063 and a polished mount suitable for SEM/EPMA featuring large CAIs and a conjoined chondrule.

Meteoritical Bulletin Database

Samples Transferred to the Smithsonian Institution

These samples were transferred to the Smithsonian Institution in the 1960s for storage and display. Although ownership remains with the University of Minnesota, they are not currently at the University and are not available for request at this time.

Name: Cold Bokkeveld

Classification: CM2

Locality: South Africa, 1838

Meteoritical Bulletin Database

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