Yamato 791197
| Yamato 791197 | |
|---|---|
| Type | Achondrite |
| Class | Lunar meteorite |
| Group | Anorthositic |
| Parent body | Moon |
| Country | Antarctica |
| Coordinates | 71°30′S 35°40′E / 71.500°S 35.667°ECoordinates: 71°30′S 35°40′E / 71.500°S 35.667°E |
| Observed fall | No |
| Fall date | 0.03-0.09 Myr |
| Found date | November 20, 1979 |
| TKW | 52.4 g |
Yamato 791197, official abbreviation Y-791197, is a meteorite that was found in Antarctica on November 20, 1979.
It is the first rock to be found on Earth identified as a lunar meteorite (see also ALH 81005). It was collected by National Institute of Polar Research, Japan.
Weighing 52.4 grams, it is a weakly shocked feldspathic regolith breccia believed to have come from the lunar highlands on the far side of the Moon.
It is classified as lunar-anorthositic breccia, a lunar meteorite that is primarily anorthositic.
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