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A paraiba tourmaline and diamond ring, in platinum. The neon Paraíba tourmaline has also been found in the neighboring state of Rio Grande do Norte. In the early 2000s, tourmaline gems containing copper and bearing similar colors were found in Nigeria and Mozambique. [63] Initially, the nomenclature for this tourmaline was "Paraíba tourmaline".
The new type of tourmaline, which soon became known as paraiba tourmaline, came in blue and green. Brazilian paraiba tourmaline usually contains abundant inclusions. Much of the paraiba tourmaline from Brazil does not actually come from Paraíba, but the neighboring state of Rio Grande do Norte. Material from Rio Grande do Norte is often ...
Rubellite is the red or pink variety of tourmaline and is a member of elbaite.Rubellite is also the rarest gem in its family. [2] It is occasionally mistaken for ruby. [3] These gems typically contain inclusions.
At Bonhams, Tonkin said prices for top-quality Paraiba tourmalines reached $75,000 per carat in 2022, compared with $4,800 per carat in 2009. Roberto Boghossian, Managing Partner of the jewelry ...
Mineral details specifying species of tourmaline etc, and then a seperate section dealing with the gem varieties (that are typically based on color - ignoring the mineral species), rubellite, indicolite, paraiba, bicolor, etc. BTW I would like to confirm whether the statement made by Krementz that "almost all the jewelry-usable material is ...
Elbaite, a sodium, lithium, aluminium boro-silicate, with the chemical composition Na(Li 1.5 Al 1.5)Al 6 Si 6 O 18 (BO 3) 3 (OH) 4, [4] is a mineral species belonging to the six-member ring cyclosilicate tourmaline group.
Paraíba do Sul is the pioneer municipality of Serra Fluminense, disseminator of civilization in what was called the 18th century backlands of Paraiba. The city was born near a backwater discovered in Paraíba do Sul River in 1681 by Garcia Rodrigues Paes son of Fernão Dias Paes Leme.
The economic growth of the Captaincy of Paraiba sparked complaints demanding the creation of an autonomous government detached from Pernambuco. Jerônimo José de Melo e Castro, governor of the captaincy, did not accept having his authority contested by Luís Diogo Lobo da Silva, governo of Pernambuco, who prevented him from properly punishing ...