Frontier Mountain 90163 Meteorite Quick Facts
- Name: Frontier Mountain 90163
- Year Discovered: 1990
- Approximate Recovery Location: Antarctica
- Precise Recovery Location: (-72.95435, 160.50937)
- Mass: 24.05 grams
- Classification: L4-6
- Discovery Type: Found
- Condition: Valid
More Details About the Frontier Mountain 90163 Meteorite
The Frontier Mountain 90163 meteorite was discovered in 1990. It was recovered in Antarctica (-72.95435, 160.50937). It has a mass of 24.05 grams.
Frontier Mountain 90163 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.
Frontier Mountain 90163’s official classification is L4-6. The classification “L4-6” refers to an ordinary chondrite from the L group that is a breccia composed of various components ranging from petrologic type 4 to type 6. These meteorites contain a high percentage of chondrules, small round mineral grains, and have undergone different levels of metamorphism, with type 4 components showing certain mineral changes and type 6 components having undergone more extensive alterations, including the conversion of specific minerals and the obliteration of chondrule outlines, all without melting.
The Frontier Mountain 90163 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: 1/11/24