These vividly colored stones originated in Linqu, a county in Shandong province known for its rich ornamental stone. These vividly colored stones originated in Linqu, a county in Shandong province known for its rich ornamental stone resources. They are hard and shiny, often appear glassy, and have interesting and varied patterns. Many are light green alternating with black stripes whiles others can be red or brown. Their composition is metasomatic metamorphic rock that has been recrystallized and replaced by hydrate minerals. They are hard and shiny, often appear glassy, and have interesting and varied patterns. Many are light green alternating with black stripes whiles others can be red or brown.