QUARTZ WITH GILALITE INCLUSIONS

Blue and green crystals of Gilalite, a copper-rich silicate mineral, are a rare inclusion in quartz, with Paraiba State, Brazil being the only source currently known.
Gilalites unusual and distinctive crystal habit, which can be reminsicent of wheat sheafs or jellyfish gives rise to commercial names such as 'Medusa quartz', while its source gives it the alternative name of 'Paraiba quartz'.