Genuine Natural Ruby Crystals.

Natural Genuine Ruby Crystal.

Why rubies of Burma are particular sought after?

Because Burmese rubies have a internal crystal structure which is distinctly unique and one of this is to show a florescent hue often allowing separation from Myanmar red rubies to any other source. The major features are both euhedral ('well-formed') and rounded crystal rains along with dense clouds of rutile silk.

Precious Ruby Ring Myanmar

Precious Ruby Ring Myanmar.

Ruby & Sapphire Cabochon.

Polished Crystals.

Repeated twinning is relatively common as is hexagonal color L zoning at times in a swirled pattern termed 'treacle'. In small numbers only are the liquid-filled fingerprints and feathers which are so common in Thai rubies. crystalline solids of a number of types are characteristic in Burmese rubies. They typically form clusters of rounded and euhedral grains of a light color or colorless concentrated particularly in the center of the crystal. The most often reported inclusions are calcite spinel corundum apatite rutile and zircon. Calcite is present as both rounded and angular rhombs and may be recognized by its cleavage and the poly-synthetic twin lamellae which it often contains plus spinel inclusions occur.

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Corundum family: which are sapphire & rubies plus jadeite jade.

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Why Myanmar rubies are most popular?

Why Myanmar rubies are popular and often much more valuable than the red stones from other countries? Their physical structure is somehow unique e.g. one of the most interesting features of Burmese ruby is the dense white clouds consisting of exsolved titanium in the form of rutile. At high temperatures when atomic spacing is greater titanium enters into solid solution with the host corundum. As the corundum cools however its crystal lattice contracts literally squeezing the titanium atoms out of solution where they join with oxygen atoms to form minute crystals of rutile. This process is known among mineralogists as 'exsolution' - the unmixing of a solid solution. Because of the constraints placed on their movement by the solid corundum host the titanium atoms are unable to travel large distances. Therefore rather than forming large crystals instead they migrate together to form thousands of tiny slender needles where space permits.

In corundum.

In corundum this space is parallel to the hexagonal prism faces in the basal plane intersecting in three directions at angles of 60° or 1200. At times, only long slender crystal threads are visible while in other cases knife- or dart-shapes appear. Closer examination reveals many of these to he twin crystals with tiny `v'-shaped re-entrant angles visible at the broad end. They are flattened so thin in the basal plane that when illuminated with a fibre optic light-guide from above bursts of iridescent colors are seen due to the interference of light from these microscopically thin mineral 'lances'.

Star Ruby.

The needle clouds just described are termed 'silk' in analogy to their thread-like pattern and are responsible for the asterism or star ruby effect of some translucent corundum. Not only rutile may form silk in corundum but also haematite and possibly ilmenite or other minerals may form exsolved needles in rubies and sapphires. Rubies from Mogok Myanmar usually contain at least some rutile silk. It is found in dense white clouds made up of relatively short individuals whereas in Sri Lankan corundums the rutile silk tends to be longer and less densely woven.

Other inclusions in Ruby Crystals.

Primary liquid inclusions are those which form simultaneously with the host mineral, liquid-filled negative crystals being one example. Secondary liquid inclusions, however, developed after the host's formation. Included in the latter category are so-called fingerprints and feathers. These represent the remnants of fractures that have been subjected to a process termed 'healing'. They may usually be differentiated from primary liquid inclusions by their curved outline. Fractures may develop in ruby and sapphire crystals for a number of reasons including simply shock or more likely from the build-up of strain due to rapid growth of the crystal. Immediately thereafter, or even millions of years later the healing process can begin. Should cracks develop as a ruby or sapphire crystal is growing the growth solutions penetrate into the open `wound' via capillary action? If the temperatures of the surrounding environment are high, healing progresses rapidly, while at lower temperatures the pace is much slower. The inner walls of the curving fracture are dissolved and solutions redeposit this material, as well as any nutrients carried in by the solution itself forming flat crystal faces. Slowly inexorably so the crack of the gemstone is sealed leaving behind pockets of undigested liquid in fanciful designs which we term fingerprints feathers, insect wings, etc. . In corundum, the pockets of undigested liquid often surround hexagonal 'islands' of healed material. Tiny growth steps or 'terraces' provide further evidence of the amazing regularity of crystal growth processes. The residual liquid is, in many cases, so thin that brilliant interference colors are seen when it is illuminated from above with a fiber optic light guide. Although flux-grown synthetic corundum may contain flux-filled inclusions formed by a similar healing process, the tremendous detail of the natural inclusions is missing because of the greater viscosity of the flux

Ruby Value and Price.

The ruby value and price are always relative to the stone size the purity inclusions and very important the color which the Burmese created s particular category and called "pigeon's blood" actually this definition is not so much used these days anymore it's a rather abstract definition for our ears. But the Burmese/Myanmar used it in the past centuries.

You like quality Gemstones? Pure Natural & Genuine.

Corundum family: which are sapphire & rubies plus jadeite jade.

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