Wealthy women wore jewels such as emeralds, aquamarine, opal, and pearls as earrings, necklaces, rings and sometimes sewn onto their shoes and clothing.
en.wikipedia.org Artisanal miners produce gold and aquamarine, tourmaline, and other gemstones.
en.wikipedia.org Aquamarine tells them she can assume human form on land during the day if she does not get wet.
en.wikipedia.org These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime, sphene, tourmaline, and many varieties and types of quartz.
en.wikipedia.org