Kiyama Black Stone (Fukushima Prefecture) [Famous Japanese Stone]

Kizan Black Stone

Kiyama Kuroishi

Kiyama stone is a granite-type stone quarried in Shibayama, Kamisaka district, which straddles Iwaki city and Hirata village in Fukushima prefecture.
Its weather-resistant, hard, and shining beauty has captivated people.
Kiyama Kuroishi has beautiful skin that is as soft as silk.
No other granite like this is found in the Hokuriku region, demonstrating how special Fukushima's geology is.
Its main components are quartz, feldspar, and biotite, and one of its charms is that when exposed to sunlight, the sparkling biotite appears to float on the surface of the stone.
Although there are individual differences, weak negative ion and hormesis effects can be observed.

Kizan Stone is a granite-type stone that is quarried at Shibayama Mountain in the Kamimisaka district in Fukushima Prefecture. The charm points of Kizan Stone are it is resistant to weathering, shiny and beautiful. Kizan Stone has a smooth texture like silk. This is the only granite that produced In Hokuriku region so this indicates how special the geology of Fukushima Prefecture is. Quartz, feldspar and biotite are the main components. The biotite that glitters when exposed to sunlight makes it look like floating on the surface of the stone and this is also one of the charm points of Kizan Stone.