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Meteorite Classification

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Stony-Iron Meteorites

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Characteristics: Mixture of silicate minerals and iron-nickel alloys. Examples: Pallasites, Mesosiderites.

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Pallasites

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Characteristics: Stony-iron meteorites made mostly of olivine set in a matrix of iron-nickel metal. Examples: Imilac, Esquel, Fukang.

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Enstatite Chondrites

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Characteristics: Composed largely of the mineral enstatite, extremely reduced forms of certain metals. Examples: EH (high iron), EL (low iron) enstatite chondrites.

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Iron Meteorites

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Characteristics: Composed primarily of iron-nickel alloy. Examples: Hexahedrites, Octahedrites.

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Chondrites

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Characteristics: Non-metallic, contain chondrules. Examples: LL, L, and H ordinary chondrites.

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Achondrites

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Characteristics: Lack chondrules, often from differentiated bodies. Examples: Eucrites, Diogenites, and Howardites.

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Martian Meteorites

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Characteristics: Originates from Mars, often contains trapped gases that match the Martian atmosphere. Examples: Shergottites, Nakhlites, Chassignites.

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Lunar Meteorites

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Characteristics: Originates from the Moon, similar in composition to Moon rocks collected during Apollo missions. Examples: Anorthosite breccias, mare basalts.

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HED Meteorites

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Characteristics: Hypothesized to have originated from asteroid 4 Vesta. Examples: Howardites, Eucrites, Diogenites.

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Carbonaceous Chondrites

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Characteristics: Contains high amounts of water and organic compounds. Examples: CI, CM, CR meteorites.

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