Kameoka City
Kyoto Prefecture, Japan
Key Information
Do not enter mining areas without proper authorization.
Kameoka City, in Kyoto Prefecture, Japan, is known for its unique Sakura Ishi (Cherry Blossom Stones), pseudomorphs of mica after cordierite and indialite, prized by collectors.
The city hosts diverse minerals, including tungsten and beryllium varieties, at sites like Otani Mine and Hirono.
It has a rich mining history, with Otani Mine operating from 1912 to 1983, and is culturally significant with festivals and historical sites.
The climate is temperate, supporting varied ecology, and the geological structure includes hornfels from contact metamorphism.
Geographic Location
Kameoka City lies in the Kansai region, about 20 km west of Kyoto, with a population of around 90,000. It serves as a suburb of Kyoto and was historically a key transportation hub connecting to other Japanese regions.
Minerals Produced
Kameoka is famous for Sakura Ishi, unique mineral formations resembling cherry blossoms, made of mica (muscovite) replacing cordierite and indialite, found only in central Japan. Other minerals include arsenopyrite, bertrandite, beryl, and more at Otani Mine, and albite, allanite-(Ce), and others at Hirono, offering a rich variety for enthusiasts.
Geological and Mining History
The city's geology features hornfels from contact metamorphism and a vein-type tungsten deposit at Otani Mine, active from 1912 to 1983. Collectors still seek cassiterite and beryllium minerals here, highlighting its mining legacy.
Cultural and Environmental Context
Kameoka preserves its castle town heritage, with attractions like the Hozugawa Kudari boat ride and the Kameoka festival in October. It has a temperate climate with forests and agricultural lands, supporting diverse ecology.