QUARTZ-INCLUSIONS.COM
PARAIBA QUARTZ and MEDUSA QUARTZ

WITH INCLUSIONS OF GILALITE


INFORMATIONS


Paraiba Quartz has nice blu inclusions of the rare copper mineral Gilalite (Cu5Si6O17·7H2O). It comes in two varieties, Medusa Quartz and Paraiba Quartz.
The more sough after is the so called Bolinhas (small balls) or Medusa Quartz (Jellyfish) that shows small globular aggregates of fibrous crystals. The name is due to the shape of the aggregates remembreing Jellyfish.
The other variety is know as Paraiba Quartz, but both can be called with this generic name. It is composed of fibrous gilalite crystals in thin sheets covering a phantom inside the quartz crystal. Cut stones can be completely blue if the table is cut parallel to the quartz face or show an interesting bicolor when the stone is cut perpendicular to the phantom face.
Color is usually turquoise blue, but can be water green, more often both colors are present in the same sample. Some red spot can be due to the rare presence of micro native copper dendrites.
The commercial name Paraiba Quartz is used for remember the Paraiba Tourmaline. But is true that the origin of this quartz is really from the Paraiba State. Exactely this nice quartz comes from São José da Batalha, Salgadinho, Paraíba, Brazil.

MEDUSA QUARTZ 
PARAIBA QUARTZ