Gilalite quartz — better known as “Medusa quartz” — suspends aqua-blue gilalite clouds inside clear quartz like tiny jellyfish caught mid-drift. Discovered in Brazil’s Paraíba state, fine specimens are keenly collected and increasingly hard to source.GEMIC Institute maintains a genuine selection of Medusa quartz: natural stones, certified in our laboratory, each filmed so you can see its inclusions exactly. Unique pieces; worldwide tracked shipping and 30-day returns.