Amo - L5 Ordinary Chondrite

Amo is a recent witnessed L5 Ordinary Chondrite fall from Hendricks County, Indiana, USA, which occurred in 2024. It is one of only a small number of approved meteorites from Indiana, making it an especially notable American fall. As an L Chondrite, Amo has lower metallic iron than H Chondrites, while its type 5 classification indicates significant thermal metamorphism on its parent asteroid. The Meteoritical Bulletin records Amo as a confirmed fall from Indiana, classified as an Ordinary Chondrite, L5.

Amo specimens are expected to show the compact, equilibrated texture typical of an L5 Ordinary Chondrite, with subdued chondrules, scattered metal grains, and a grey to brown stony matrix. Fresh fall material may retain dark fusion crust, providing a direct visual record of its atmospheric entry. The type 5 classification means that original Chondritic features have been partly recrystallised by heat, while still preserving the broader structure of an Ordinary Chondrite.

Studying Amo provides insight into L Chondrite parent bodies, thermal alteration, and the recovery of fresh meteorite material from modern witnessed falls. For collectors, it offers a rare combination of recent fall provenance, Indiana origin, official classification, and limited availability. Each specimen represents ancient asteroid material formed over 4.5 billion years ago, connected to a clearly recorded modern event.