Expedition:

Antarctic Search for Meteorites (ANSMET)  Search this

Weight:

0.325 g

Place:

Antarctica

Collection Date:

1977

Notes:

# NASA data for ALH 77001 Weathering: B Fracturing: B Pairing: ALH 77001 Fa: 25 mol % Fs: 21 mol % ²⁶Al: 52 ± 5 dpm/kg

Fusion crust is mainly missing. One large surface was produced by breaking after fall; complementary fragment is probably in the collection. Original surfaces are consider­ably weathered. Sawed surface showed unweathered metal particles to within ~1 cm of the surface. Specimen contains several cracks and appears slightly friable. One existing broken surface contained an irregular, medium gray, fine grained clast ~0.7 cm across. No clasts were noted on the sawed face.

Record Last Modified:

4 Aug 2025

Specimen Count:

1

Other Numbers:

Original meteorite number : ALHA77001,19

USNM Number:

USNM 6361

See more items in:

Mineral Sciences

Meteorites

Inventory Collection

Data Source:

NMNH - Mineral Sciences Dept.

GUID:

http://n2t.net/ark:/65665/3542b4fe7-95af-432f-9790-70b3b0af1af1

EDAN-URL:

edanmdm:nmnhmineralsciences_1021648