Pariaba colour tourmaline is one of rare variety of Tourmaline minerals and gemstones. Heitor Dimas Barbosa discovered this splendid colour tourmaline in 1980s. He kept on digging in mountains of Paraiba, a Brazilian State. Neon bright pariaba tourmaline attracted him a lot. It can be said that he is the first among all who found this lovely gemstone.
What Makes Pariaba Tourmaline different from other tourmaline?
Obviously, it is the sparking neon blue colour that makes pariaba tourmaline different than others. Pariaba tourmaline comes in many different colours such as blue, greenish blue, neon blue, green.
How can we Identify Pariaba Tourmaline?
Pariaba is first recognized by its different colour. But technically, trace element of copper gives it unique neon colour. The presence of copper will mark the tourmaline as Pariaba. Pariaba like colour is found in Afghanistan also. However, it lakes copper element which does not prove it Pariaba like technically. But if there exist copper, it will be called pariaba like. Pariaba is a name of state. As copper including tourmaline was first discovered in Pariaba so it got its name popularity as Pariaba Tourmaline.
Some pariaba like tourmaline minerals and gemstones is found in African regions of Nigeria and Mozzambique also having same chemical properties which Brazilian Pariaba have. Wuth colour difference of greenish blue. People started selling it by giving the trade name Pariaba like Brazilian tourmaline. Pariaba is state name of Brazil so people are confused what to give name to the tourmaline.
Similar is the case with Afghanistan tourmaline.
Information about aPriaba Tourmaline
Pariaba colour tourmaline is found in USA, Brazil, Afghanistan, Nigeria, Mozzambique, East Africa, Madagascar.
Its colours are Neon Blue, Electric Blue, Electric Green, Vivid Green, Bluish Green, Vivid Blue.
Its chemical composition is (NaCa)(LI,MgFe,Al)9B3Si6(O,OH)31.
Its hardness is 7 to 7.5
Its crystal structure is Triagonal.
Its density is 3.06 (.05, +.15).
Its Refrective Index is 1.624(+.005, -.005) – 1.644(+.006, -.006)
Read here how gemstones get their specific colours? http://www.geogemsmineralclub.com/2017/07/12/how-gemstones-get-their-specific-colours/