Posted on September 02 2019
From years the Paraiba tourmaline has become the star of the jewelry. But few really know this stone, which can take on different colors and is often confused with other gems. Tourmaline has started its rise in the late eighties, when it was discovered the variety of intense colors in the mines of Paraiba, Brazil. These tourmalines, blue and green hues, have had immediate success. Prices for this stone rose rapidly to more than $ 10,000 per carat. However, beware: tourmalines are also red stones that are presented with the name of rubellite.
Composition: The tourmaline according to the chemical composition is a crystalline boron silicate mineral, with elements of aluminum, iron, magnesium, sodium, lithium, or potassium. It is a semi-precious stone. The name comes from the Tamil and Sinhalese turmali, used for different gemstones found in Sri Lanka. In previous centuries, from this country south of India were brought to Europe large amounts of tourmaline.
Colors: The tourmaline has a great variety of colors. The stone discovered in the Brazilian states of Minas Gerais and Bahia, however, is a unique variety and bright colors, blue and green. The world’s largest weighs 191.87 carats and was included in the Guinness Book of World Records.
Where is it from? Brazil isn’t alone! In the late 1990s tourmaline containing copper was found in Nigeria. It has recently been discovered tourmaline also stones from Mozambique, much like Paraiba. For this reason, it is often called Paraiba tourmaline also stones from Mozambique, but it is a mistake (sometimes aware): the colors of African stone are often a little ‘less brilliant than that of Brazil. Tourmaline African also coast much less.
There is also the deep green tourmaline of Tanzania, which contains chromium (the same mineral that colors the emerald). And are also yellow tourmaline, sometimes known as canary tourmaline. Zambia is rich in tourmaline red and yellow, which are relatively inexpensive. By a strange coincidence, the rarest variety colorless, the achroite, is not appreciated and is inexpensive. Tourmalines are also in Afghanistan and the United States. Deposits in Maine tend to produce crystals mint-green, or pink-red raspberry. The deposits of California are known for a bright pink, but also two-tone.