




| Mouse Diamond: Big Diamond discovery in Guinea. Well call it luck or a gateway to adversity. A young miner scourging the West African forests of Guinea stumbled upon a 182 carat stone. Four times the size of the famous Hope Diamond, these staggering figures would have made any person proud of his discovery. But far from taking pride in his discovery our young 25 year old miner has gone into hiding. |
| Reason: Everyone within close proximity of the stone starting with the Government of Guinea to the local traders and masses wants their pound of flesh. This resulted in the Diamond being tucked away deep in the vaults of Guinea's Central Bank. No Pictures and No Comments were the one liners used by everyone. |
| Mining Industry officials confirmed that though the newly dug stone was not flawless, it was well worth a fortune in its rough state. Guinea's biggest Diamond operators Aredor mining company say that the find is worth millions of dollars. Roughly shaped in a form similar to a computer mouse the Guinea gem is 10 cm from tip to tip on its longest side and 3 cm wide. Compared to this gem the famed Hope Diamond stands at a mere 45.52 carats. | |
| | Discussing on condition of anonymity, officials and diplomats disclosed that the miner struck his shovel on the stone at a dig in southeast Guinea, bordering Ivory Coast and Liberia. It was clear however that the stone did not stay for long in the hands of the finder. It soon found its way in no time to the capital, Conakry, where it was kept behind steel doors at the guarded Central Bank. "The finder had no choice but to hand it over. Fearing his life" said a western diplomat stationed in the capital. Most people are reluctant to give the whereabouts of the young miner. |

Rubies are made up of the mineral corundum. Corundum is aluminum oxide ( Al2O3). A ruby forms when there is a small impurity of chromic oxide in the corundum (an aluminium oxide in which some of the aluminum ions have been substituted by chromium). This substitution process is called an isomorphous replacement. Chromium and vanadium, another metal constituent of rubies, provide the fiery red color of the crystal. If the stone formed in the corundum is not red, it is a sapphire, although the name is commonly associated with only blue stones.
Example of Corundum
Another name for Corundum is Emery. On Mohs Scale of Hardness, Corundum is a 9, just under diamonds (10).
Ruby crystals form at high temperatures, between 620 and 670°C. They appear to be the features of distal hydrothermal reactions with marble. "They are formed mainly in high-grade metamorphic environments where hydrothermal fluids meet limestone," (Waltham, 1999, p. 144). When there are rutile inclusions present in cabochons, there is a star effect.
Star Effect
Rubies can also be created in a laboratory, using two different methods: Flame-Fusion and Flux-Growth.
The cheapest method of producing synthetic rubies is the flame-fusion process. The chemicals are melted and dripped onto a boule. The melt then crystallizes within a matter of hours. The result is an unnatural, glassy stone with curved growth plates. Instead of inclusions, flame-fusion rubies have tiny gas bubbles. They cost $1-4 per carat. Such a ruby is often used in costume jewelry.
Trillion Cut Ruby
The flux-growth method involves dissolving the chemicals into a molten mixture, called a flux. The gem is inserted into the flux, and it crystallizes under controlled-pressure conditions. It takes up to six months for the crystal to form. The growth planes are straight, making the crystal structure look more like a natural ruby. Often flux-growth rubies have inclusions which only skilled gemologists can decipher from natural ruby inclusions. Flux-growth rubies can range in cost from $100-500 per carat. Because these rubies look so real and are much more affordable, many people buy them... but no geologist ever would!
Literature Cited


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