Japanese Persimmon (Black Persimmon)

There is no separate tree species called "Kurogaki" (Black Persimmon). Among Diospyros kaki (Japanese persimmon), wood that develops black streaks or patterns in the heartwood is referred to as Kurogaki. It is highly prized but extremely rare—considered one of the most valuable decorative timbers.

English Name	Japanese persimmon
Scientific Name	Diospyros kaki Thunb.
Other Names	Kaki persimmon
Family	Ebenaceae (Persimmon family)
Origin	Japan, China
Appearance	Black streaks or patterns appear on a white or brown heartwood base; some parts can be entirely black Shapes and shades of patterns are irregular Fine texture, but grain is indistinct
Wood Properties	Heavy and hard Slightly difficult to process, but cuts cleanly High oil content; produces a beautiful shine with dry polishing
Applications	Used for decorative purposes such as alcove posts, crafts, and utensils
Product Examples	Sawn timber, karaki (traditional hardwood)