The opal shines as the colors are dancing and has a soft impression. I am familiar with the class and put it on the skin It is simply knitted up to bring out the beauty. Australia's opal is produced from a stable layer, a sedimentary layer, so it is resistant to cracking and discoloration, without the hydrophen effect that occurs when it is immersed in water. This is a white type opal from Lightning Ridge which is also said to be a sacred place of opal. Because this opal has left a little mother rock on the back side, it emits a steady glow regardless of the color put down, and blue green, purple and yellow are beautifully fluctuating in the white gentle color. Natural Stone: Australian Opal (Lightning Ridge) Decoration: 14kgf Silk thread: ivory Adjustment: Quartz (slide adjustment) [About silk] This work uses silk. It is a delicate silk because it is a natural fiber, but it can be used for a long time by proper care. If you inhale sweat, gently tap it with a squeeze towel and drop it. Take care not to handle it as it is vulnerable to water and rubbing. After cleaning, place it in a well-ventilated place and store it away from direct sunlight.