Allan Hills A77215 Meteorite Quick Facts
- Name: Allan Hills A77215
- Year Discovered: 1977
- Approximate Recovery Location: Antarctica
- Precise Recovery Location: (-76.71667, 159.66667)
- Mass: 819.6 grams
- Classification: L3.8
- Discovery Type: find
- Condition: Valid
More Details About the Allan Hills A77215 Meteorite
The Allan Hills A77215 meteorite was discovered in 1977. It was recovered in Antarctica (-76.71667, 159.66667). It has a mass of 819.6 grams.
Allan Hills A77215 is considered a “Valid” meteorite. “Valid” meteorites are typical meteorites with average weathering, while “relict” meteorites are those that have been extremely altered, either due to weathering over time or human intervention.
Allan Hills A77215’s official classification is L3.8. An ordinary chondrite classified as “L3.8” is part of the L group and is characterized as petrologic type 3. These meteorites are known for their abundant chondrules, limited aqueous alteration, and mineral compositions that include monoclinic low-Ca pyroxene grains with polysynthetic twinning.
The Allan Hills A77215 meteorite is a “find” meteorite. Meteorites are classified as “falls” if they were observed falling and recovered, while “finds” are those discovered later, often weathered by longer exposure to Earth’s environment and without a record of being seen as they fell.
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Last Updated: 12/29/23