magnesium-rich varieties of brown to yellow

Tourmaline is a gem that has been popular ever since the Roman Empire.
Tourmaline belongs to the trigonal (three sides), crystal system and occurs in
Long, thin to thick prismatic crystals, which are usually triangular
Cross-section. No other common mineral has three sides. This group of minerals
chemically one of the most complicated groups of silicate minerals.

Variety of colors due to the different elements occurring tourmaline.
As a rule, iron-rich tourmalines are black or blue-black to dark brown, whereas
magnesium-rich varieties of brown to yellow, cultured akoya pearl, and lithium-rich tourmalines
almost all colors: blue is so rare, green, red, yellow, pink tourmaline
colorless. Two colors and colored crystals are quite common. Crystals
green on one end and pink on the other, or green from the inside out, and pink tourmaline, watermelon, that this variant. Some forms of tourmaline
are dichroic (they seem to change color when viewed from different
Ruth).

In 1989, Brazilian miners found many unique and colorful
Tourmaline. A new type of tourmaline was found in the state of Paraiba and
quickly became known as Paraiba tourmaline. This new found excitement, with its numerous
bright colors blue and green. These iridescent colors are often used as a new
"Neon", as they seem to glow.

Gemologists have found that the bright colors of tourmaline from Paraiba, due to the
The presence of copper. This contrasts with other varieties, where copper
rarely, if ever present. Paraiba Tourmaline often contains manganese. Interaction between copper and manganese creates beautiful color of this variety.

In the late 90's, tourmaline copper was found in Nigeria. This material was
Usually pale and less saturated materials from Brazil, although
much smaller than Brazil are included. The recent discovery
Mozambique has also produced beautiful tourmaline colored copper, similar
Tourmaline Paraiba in Brazil. Mozambique Paraiba is often lower in price and
were found in large sizes. There is significant overlap in color and
Clarity Mozambique Paraiba Paraiba and Brazil. Some documents Mozambique
sold more than $ 12,000 per carat wholesale, which is still very high
compared with other tourmalines.

Because of the diversity of Mozambique is uncertain at this point, the consensus seems that it is very important that it is much easier accessible, china pearl jewelry, but very few large rocks or stones
very rich. Supply will decrease over time. Meanwhile, it seems
The growing demand for this beautiful gem. There are usually terrific
Entertainment copies available in most of the jewelry. These pieces are an amazing spectacle not to
be missed and is in time to see as they become available.