Bi Color TourmalineTwo-coloured Tourmaline
A number of tourmaline jewels may contain two or more characteristic colours and are generally known as two-tone tourmaline. Two-tone tourmaline jewels appear in a variety of color variations and show several color areas throughout the entirerystal. Bicoloured Tourmaline are very popular when the colour zone is well known and the colours are lively.
Two or more colours are often contained in a singular tourmaline crystals, resulting in a two-coloured tourmaline. Tourmaline gemstones that seem to be changing color and cat's eyes are also scarce tourmaline fiancy tourmaline. has become a favourite in jewellery because it is available in so many color. Bicoloured rocks are usually sliced into square or green emeralds to emphasise the colouring.
Bi-colour Tourmaline is one of the most sought-after members of the Tourmaline precious stones group. Tourmaline's cost, application and value varies enormously according to the gem's dimensions and aroma. Might you buy bulk gems instead of pre-set jewellery? If you buy your gem in bulk instead of a preset gem, you can be sure that you get the best value for the prize.
Lots of gems are cheaper, cheaper and you can really see what you are buying for. An ornamental frame hides the enclosures within a gemstone and can intensify or lighten its colour. It is much easier to examine the gemstone with a free piece and see what it really is.
So the second benefit of purchasing a bulk gem is the option. Select the precise colour, polish, form and diversity of the gem for the gemstones of your dream, be it yellows, whitegold, palladium or sterling silver; tine or stems. Select from a wide range of jewellery options and designs to make a totally different look that fits your gem and is as special as you are!
Our finest two-colour tourmaline gems, precision-cut two-colour tourmaline, are proud to be offered to you. OriginAfghanistan, Brazil, East Africa, Nigeria, Mozambique, Madagascar, U.S.A. Pink, Paraiba, red, blue, orange, green, yellow, black, two-coloured, tricoloured, multicoloured and fancy colours. Turmaline can be colourless up to almost any colour, any shade known to man.
Tourmaline gems are available in almost every colour. Two-coloured tourmaline gems are ideal for wear and are easy to maintain, as all two-coloured tourmaline have a 7 to 7.5 on the Mohs-Skala. Turmaline has a density of 3.06, a refraction index of 1.624 - 1.644 and a refraction of 0.020.
The majority of gemstones have a cristalline texture. They are subdivided into seven symmetrical sets. Number of axles, their length and their angles to each other define the system to which a crystall is part. Turmaline is part of the intrigonal system of trigonals and is a long, slim to thick crystall of rectangular and column-shaped shape, usually with a three-cornered cross-section.
It is interesting that the terminating styles at the ends of the crystal are asymmetric, also known as heimorphism. Slim, small and slim crystal prismatics are found in a fine-grained crystal, the plite, and often form radials, daisy-like patternl. Turmaline is characterised by its three-sided prism; no other standard crystal has three sides. Turmaline is seldom perfect sebum.
Yinnietharra's Dravit tourmaline in West Australia was an exceptional case. Turmaline has another characteristic that has drawn the interest of researchers since antiquity. Twenty-three hundred years ago, the physicist Theophrastus described that "lyngourion", probably the rock tourmaline, has the characteristic of drawing straw and pieces of almonds. The piezoelectric effect arises when the crystals are exposed to heat, creating a beneficial effect at one end of the crystals and a detrimental effect at the other end, drawing minor amounts.
Nearly all jewel tourmaline are of the type Elbait. Elbait also contains the attractive colorful crystal. They are very costly because they form nice specimen. Other types of tourmaline (liddicoatite, uvite, chrommdravite and buergerite) are very uncommon and are valued only by serious minerals-gatherers. Turmaline is a jewel known for the wide and unmatched palette in which it appears, and two-tone tourmaline are gems that show the singularity and splendour of these inks.
There is also a wide colour range among the two-coloured Turmalines. The colour of some of them is very bright, others are so deep that the colour tone can only be seen when the two-coloured block is kept against the candle. Tourmaline, according to an old Egypt myth, is the colour diversity of tourmaline as a consequence of the fact that on the long journey from the earth's core to the earth's rays, tourmaline gemstones travelled along a precipitation arc and on its way gathered all the colours of the precipitation arc.
That is why tourmaline is today referred to as "rainbow gemstone". Rainbows are pictorially used for tourmaline rocks. The fact is that the colour variety of tourmaline is not restricted to the seven colours of the archer. Tourmalines can be colourless up to almost any known colour, colour or clay, even single tourmaline crystal can differ in length or area.
From the colour varieties along the length of a crystall the two-coloured and tricoloured tourmaline are created. Colour variability in section can be concentrical, as in the case of water melon tourmaline, a rose tourmaline nucleus encircled by a verdant bark. Indeed, tourmaline quartzes with only one color are quite seldom.
In general, one and the same glass shows several hues and colours. It is not only a broad colour palette that characterises this gem, the two-coloured tourmaline also shows a noteworthy cymbal. The colour varies or at least shows a different level of brightness according to the viewing angles of a two-coloured tourmaline.
Whenever a two-colour tourmaline is intersected by a two-colour tourmaline block, the lowest colour always shows up along the major axe. Turmaline is divided into several types according to colour: Tourmaline occurs in long form crystal, most economical in the long rectangle form, but also as pillows, oval, rings, emerald sections and sometimes trillions or other unusual forms (including bulbs, briolets, hearts and marques).
Delicate tourmaline bicolored crystal with the highest price per carats is usually sliced into more traditional Emeralds, Oval and Pillows. Rosa and turmaline gems from certain locations contain minute, parallele, tubular pockets, which show a powerful cat's eyes effect during polishing. Cats' eyes tourmaline are sliced into the form of a cabin to create and correctly represent the cat's eyes effect.
Treatment Some tourmaline gemstones, especially rosy to reddish coloured gemstones, are modified by radiation to enhance their colour. Radiation is hardly detectable with tourmaline and has a negative effect on its value. Heavy tourmaline like Rubellit and Brasilian Paradiba are sometimes clearer. Clear tourmaline (especially paraiba) is much less valuable than an untreated gemstone.
Thermal processing can improve the colour of some tourmaline. A few darkgreen rocks can be deeply emeraldgreen, some brownish-red rocks can be reddish or rose and some pale rose tourmaline gems can be rendered colourless by overheating. You can lighten the color of many of your bricks. The tourmaline was first imported from India to Europe in 1703, and its name is derived from "tura mali", its Sinhala name.
Turmaline is a widely used gemstone and its clear colours are very popular. Tourmaline has become more fashionable since its discovery in 1820 on Mount Mica near Paris, Maine. Tourmaline was also found in Massachusetts, California and New York State.
Turmaline is found in granites, especially in albite, slate and slates. Turmaline jewels have been found throughout the ages in Africa, the Urals and other places in Europe, but some of the most thrilling finds have been found in North and South America. Several of the best tourmalines in the word can be found in eruptive stone segmatite dykes and floodplains or in the Virgem da Lapa area in Minas Gerais, Brazil.
Several of the most important gemstone tourmaline and acquamarine production sites are the Araua, Corrego do Urucum, Cruzeiro, Golconda, Jonas, Limoeiro, Medina, Pedra Azul and Xanda Caverns. Nearly all colours of tourmaline can be found in Brazil, especially in the states of Minas Gerais and Bahia.
1989 the people of the state of Paiba found a singular and colourful tourmaline species. This new tourmaline that soon became known as Paaiba tourmaline came in an unusual vibrant blue and green. They were often referred to as "neon" because they seemed to shine. As a rule, Brazil's parabiba tourmaline is strongly contained.
With over $50,000 per karat, the enthusiasm and enthusiasm for this new fabric has deserved more consideration for the other colours of tourmaline. Batalha Mine ("Mina da Batalha", pronounced as" Bat-tal-ya") is located in Serra the Queimadas Mountains, on the side of Frade Hill ("Serra da Frade"), very near the small hamlet of So Jos da Batalha and about 4.5 km north-east of the city of Salgadinho in the state of Paraiba, Brazil.
Tourmaline crystal in gemstone grade is nestled in this tone and can be found in small clay-filled bags in the pegmatite heart of the peg. The most tourmaline crystal was fractured by tectonics and shows a medium to strong etch. A number of beads have also been partly or fully converted into lepidolith. The associated mineral types are silica, lepidolith, schorl, darkgreen non-cupric iron oxide and Nb-Ta-oxide.
The Capoeiraegmatite ( "capoeira pegmatite"), also known as the Boqueirozinhoegmatite, and the coppercoloured élbaite are also known as the Capoeira Boqueirozinhoegmatite. Vestiges of engraving were also found in tourmaline from Gregario Parelhas. Others metallics also found in local areas of megmatites (, U, W, Ta, Sn, Nb, Mn) were seen by some researchers as arranged in wide concertina areas which radiate outwards from the centre of the region, the copper-containing tourmaline ribbon running parallelly to these areas and therefore probably being genetically related to the nuclear plutonium.
Batalha mine copperrian elbbaite comes in a variety of saturated colours, from yellow-green to emeraldgreen, blue-green, turquoiseblue, tanzanitblue, sapphireblue, "electric" blues, bluish-violet, violet, purple-pink, rose and grey-every colour is priceless. Though the area in north-eastern Brazil, where deposits of copperelbaite have been found, is quite large, none of the towns have crystallized to those of the Batalha mine.
Also, almost all good beads of any dimension have a tendency to break, and the rest is usually imbedded, not mmmy and not of good commutator-grade. While the quarrying process in the area is continuing, there is a chance that more good gems will be found, but their extreme high value probably means that most will still be ground as gems and not stored as crystalline samples.
Therefore, even very small crystal of good color, shape and translucency will probably rarely be found in the collection and on the pump. A number of delicate tourmaline materials were made in the USA, and the first discovery was made in the state of Maine in 1822. In the early 1900s, California became a major manufacturer of bulk tourmaline.
Maine sediments have a tendency to grow tourmaline crystal in rasberry and mint green. California's tourmaline reserves are known for their light purple and interesting bicolor. In the early 1900s, Maine and California were the world's biggest manufacturers of gemstone tourmaline. A mine on Mount Mica in Paris, Maine, is the main spring for the best US tourmaline.
Gemstone Tourmaline were found one fall 1820 by two young, Elijah L. Hamlin and Ezekiel Holmes, a mineralogist at Mica. Coming home from a strenuous exploration, they found a bright yellow compound at the base of a forest and the examination awarded them a delicate red tourmaline.
Snowstorms stopped them from searching again, but the following springs they went back to their "Claim" and bought a series of delicate beads. Tourmaline from Mount Micas are found in pegmatite bags covered with slate, which has now been partially removed to make this interesting minerals mining activity easier.
The Pine Tree State treasury contains treasures of dark tourmaline, muskovite and lepidolit. Tourmaline from this spring have many examples of uncommonly beautiful ones that have enhanced the collection of royal, affluent privately owned experts on gemstones and large publicly owned museum and education complex. The Dutton Mine in Newry, Maine, became one of the greatest finds of all times in 1972 and for a short while became a global resource for high grade tourmaline in reds and greens.
During the 1860s, the first explorations to the Californian Riverside and San Diego Counties lead to the exploration of the delicate rose tourmaline in San Diego County. The majority of the rose tourmaline extracted from the Stewart Mine went to Empress Tzu Hsi of the Ch'ing Dynasty and her retinue, who bought everything they could get and had it shipped to China.
California's tourmaline booming ended in 1911 with the deaths of the Dowager Empress. The First World War marks the end of tourmaline quarrying in the San Diego area until the 1970s. In the end of the 1990s copper-containing tourmaline was found in Nigeria. Recent discoveries in Africa in Mozambique have also yielded nice tourmalines dyed with brass, similar to the Brasilian paradise of Hercules.
Mosambique is often less contained and has been found in bigger dimensions.
Chrom-Turmaline, a scarce species of Tanzanian dravitic tourmaline, is another one of a kind that is also much appreciated and comes in a very lush shade of colour, due to chrom, the same colour that causes the greens in the emerging world. The name Tourmaline comes from a Sinhala term, "tura mali", which means "mixed coloured stones" and was initially used on a range of coloured gemstones mainly made of zircon.
Empress Dowager Tz'u Hsi, China's last empress, adored rose tourmaline and purchased large amounts of precious stones and woodcarvings from the then new Himalayan mine in San Diego County, California. While the Himalayan mine still produces tourmaline, the Dowager rested forever on a tourmaline cushion.
Tourmaline's capacity to look like other gems caused some confusion. Much of the precious stones in Russia's crown jewelry from the seventeenth century, once considered ruby, are actually tourmaline. South America, where most of these gemstone qualities can be found, still calls it " Brazil's emerging gold ".
It is unlikely that the amount of this type of stone, which was quarried and sent to Portugal as emeralds in the early era of Portugal's colonisation, will ever be known. Folklore of multicolored tourmaline says that both the incorporation of this fine and multiphasic material into the humanity' s science and esteem and its discoveries in America were due to it.
They called on their families to clarify the cause of this mystical possession, but they could not declare or I. They gave them the names of tractors or boxes of ashes that hung on these tourists for a long while. The name Elbaite comes from the island of Elba, Italy, where many beautiful examples have been found, among them the well-known "Moorkopf Tourmaline".
Turmaline gems are counted with the strength to improve the own comprehension, to strengthen the self-confidence and to strengthen the own psychological energy and to promote the focus and communicate. Tourmalins were thought to relax the organism and sanity and help in the management of many different illnesses such as fear, sepsis, arthritis and cardiac ailments.
Rosa Tourmaline should be a source of inspiration for charity, spirit and ingenuity. It should give insight and strengthen the will-power. Water melon tourmaline is said to be very efficient in recovering from emotions. Turmaline is the birth stone for October and equals the zodiac of the Libra. Not one tourmaline is exactly like another.
Two-coloured tourmaline gems show many faces and are therefore ideal for all atmospheres and atmospheres. No wonder, then, that magic has been ascribed to two-tone tourmaline since antiquity. Two-coloured tourmaline is said to have a particularly strong effect on affection and fellowship and to give them durability and sturdiness.
Two-coloured tourmaline is something very unique in the intriguing realm of gems. Because of its excellent colour range and its excellent quality, this two-tone tourmaline is one of our most sought-after gems. We' ve got a large selection of fine two-tone tourmaline gems to give your lifestyle a touch of splendour, strength and even more.