Yamato 790138 Meteorite Quick Facts
- Name: Yamato 790138
- Year Discovered: 1979
- Approximate Recovery Location: Antarctica
- Precise Recovery Location: (-71.5, 35.66667)
- Mass: 39.32 grams
- Classification: H3.6
- Discovery Type: Found
- Condition: Valid
More Details About the Yamato 790138 Meteorite
The Yamato 790138 meteorite was discovered in 1979. It was recovered in Antarctica (-71.5, 35.66667). It has a mass of 39.32 grams.
Yamato 790138 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.
Yamato 790138’s official classification is H3.6. The classification “H3.6” refers to a specific type of meteorite known as an ordinary chondrite from the H group. This meteorite falls into the petrologic type 3 category, indicating that it has numerous chondrules, minimal alteration due to water, and distinctive characteristics in its mineral composition, including monoclinic low-Ca pyroxene with twinning. Ordinary chondrites are a major class of stony meteorites, recognized by their unique elemental ratios, specific oxygen isotopes, and a significant proportion of chondrules in their composition.
The Yamato 790138 meteorite is a “Found” 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: 1/17/24