These stones color is white, and almost have light blue stlipes.
Main content is arbite.
Almost stones are green and which are called Nagasaki-metamorphic. Wave of Nagasaki metamorphic rock. Green parts in this green schist are mainely composed of chlorite and the mica . As for a white place is albite, a lot of blue and little needle shape of actinolite crystals are contained in this. Many people think these ones albite parts became jadeite by proper pressure and temperature.