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Zaisho is the name of a stony-iron pallasite meteorite whose fall in Japan in February 1898 was recorded by observers on the ground.[1][2] Zaisho made landfall in the city of Kami, located in the prefecture of Kōchi on Shikoku Island.[3] Zaisho weighs approximately 0.33kg (12oz) and exhibits a rare composition of primarily iron rich phosphoran olivine, and pyroxene. Zaisho also contains traces of stanfieldite, farringtonite, troilite, schreibersite, chromite, and mg-phosphate, albeit in smaller amounts.[1][4][5] Notably, Zaisho is also one of two confirmed meteorite landings to take place on the island of Shikoku[1], and as of 2019 it remains one of only four known pallasite falls, along with Marjalahti, Mineo and Omolon.[4] Currently, access to Zaisho is not available to the public as the main mass of the meteorite is being held in a private collection.[4]
| Zaisho meteorite | |
|---|---|
| Type | Stony-iron |
| Class | Pallasite |
| Group | Pallasite main group, anomalous[1] |
| Country | Japan[1] |
| Region | Shikoku |
| Coordinates | 33°42′N 133°48′E[1] |
| Observed fall | Yes |
| Fall date | 1898[2] |
| TKW | 330 grams (12 oz)[1] |
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