Essentially the most historical with the August birthstones, sardonyx is a mix of two types of chalcedony (cryptocrystalline quartz): sard and onyx. Bands of brownish pink to brown to darkish orange sard alternate with normally white or black levels of onyx. She’s Tremendous expressive with her hands so wants anything https://www.gemsbiz.com/blog/explore/birthstones-by-zodiac-sign