A series of precious stones 19/32 Description Lapis Lazuli is the most admired gem in the history of mankind. The […]

A series of precious stones 18/32 Description Precious stones have an important significance in the life of all people. Onyx […]

A series of precious stones 17/32 Description What is Crystal Quartz? Crystal Quartz, the name is derivative from two dissimilar […]

A series of precious stones 16/32 Description Zircon is a precious stone which was used by our ancestors.It is a […]

A series of precious stones 15/32 Description What is citrine? Citrine is one of the majority popular gemstones in group […]

A series of precious stones 14/32 Description What is amber? Amber is a solidify pine tree juice. It is from […]

A series of precious stones 13/32 Description What is tanzanite? Tanzanite is an astonishing gemstone. It is a tri-chroic gem, […]

A series of precious stones 12/32 Description What is turquoise? Turquoise is a stone that have been valued for many […]

A series of precious stones 11/32 Description What is peridot? Peridot is derivative from the French term peritot which means […]

A series of precious stones 10/32 Description What is Amethyst? Amethyst can occur as crystals that are six sided on […]

A series of precious stones 9/32 Description Topaz is one of the most precious gems which stand for beauty and […]

A series of precious stones 8/32 Description What is Aquamarine? Aquamarine is one of the most admired and very famous […]

A Series of precious stones 7/32 Description Opal fits into the group of amorphous mineraloids because, unlike the others mineral […]

After a dozen of years from my first book about Sudan “Directory of Major Companies in Sudan – Reference Book”, […]