Yamato 983312 Meteorite

Yamato 983312 Meteorite Quick Facts

  • Name: Yamato 983312
  • Year Discovered: 1998
  • Approximate Recovery Location: Antarctica
  • Precise Recovery Location: (0.0, 0.0)
  • Mass: 42.6 grams
  • Classification: L/LL3
  • Discovery Type: Found
  • Condition: Valid

More Details About the Yamato 983312 Meteorite

The Yamato 983312 meteorite was discovered in 1998. It was recovered in Antarctica (0.0, 0.0). It has a mass of 42.6 grams.

Yamato 983312 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 983312’s official classification is L/LL3. The classification “L/LL3” refers to a meteorite that can belong to either the L group or LL group of ordinary chondrites and is of petrologic type 3. Ordinary chondrites are known for their high abundance of chondrules and low levels of aqueous alteration. The L group has moderate-sized chondrules, while the LL group has fairly large chondrules and distinct oxygen isotope compositions. Petrologic type 3 indicates that the meteorite has abundant chondrules, minimal aqueous alteration, and certain characteristics in its mineral composition, such as monoclinic low-Ca pyroxene grains with twinning.

The Yamato 983312 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: 1/18/24

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