Price reduced from 1800 yen. The power stone often called "Nishikigoi" (brocade carp) refers to natural aura quartz (limonite quartz). It is said to have effects such as giving hope and brilliance to life, drawing out potential and inner charm, and fostering peace of mind and positive feelings. This stone is so named because the vivid colored inclusions (patterns) of iron and other minerals within the crystal resemble Nishikigoi.