Abstract. The occurrences of gemstones was first recorded in Zambia (Luanshya) in 1928 about 85 years ago. Gemstone is naturally formed minerals (rocks) namely, emerald, diamond, pearl, tanzanite, and many more, numbering over 250. These are highly priced due to their beautiful colours and their use in jewellery, home decorations and also in some industries for various purposes. However, its commercial extraction began in 1980 when it was classed as small scale mining due to about 20 % of its revenue generation which boosted the country economy. The paper discusses the historical development of Gemstone industry, examines the difficulties and challenges in the growth of this industry and finally gives a brief technical know-how to different...
Réalisé à partir de missions de terrain ayant eu lieu entre 2004 et 2008. Rédaction entre 2008 et 20...
Gemstones are minerals of gem qualities used for adornment and decoration with the attributes of bea...
International audiencePrompted by the increasing number of laboratory-grown gems and the growing sop...
Abstract: Zambia is a land-locked country occupying an area of 752 614 km 2, with the geology domina...
Gems have been used in the manufacture of jewellery and as ornaments since antiquity. Considering ge...
This paper defines and specifies the groups of natural gemstones. It deals with gemstone classificat...
Gemstones inspired people since the very beginnings of humankind due to their esthetic nature and as...
An overview is presented of gemstones from eastern Kazakhstan in terms of their geographical distrib...
Zambia has for many years been heavily dependent upon the mining of copper which, combined with coba...
Dr. Gamini Zoysa, Ceylon Gemmological Services Sri Lanka has long been known as one of the world’s m...
Various geological reports on Nigerian Geology reviewed indicate that gemstones occur in all the geo...
Gemstone value is often associated with origin as particular color, clarity, and other attributes of...
La géographie des gemmes a beaucoup évolué au cours des deux dernières décennies. Les exploitations ...
Prospecting methods adapted to gemstone prospecting are considered and described in this paper. They...
The gemstones of ancient Egypt, broadly defined, include all rocks, minerals, and biogenic materials...
Réalisé à partir de missions de terrain ayant eu lieu entre 2004 et 2008. Rédaction entre 2008 et 20...
Gemstones are minerals of gem qualities used for adornment and decoration with the attributes of bea...
International audiencePrompted by the increasing number of laboratory-grown gems and the growing sop...
Abstract: Zambia is a land-locked country occupying an area of 752 614 km 2, with the geology domina...
Gems have been used in the manufacture of jewellery and as ornaments since antiquity. Considering ge...
This paper defines and specifies the groups of natural gemstones. It deals with gemstone classificat...
Gemstones inspired people since the very beginnings of humankind due to their esthetic nature and as...
An overview is presented of gemstones from eastern Kazakhstan in terms of their geographical distrib...
Zambia has for many years been heavily dependent upon the mining of copper which, combined with coba...
Dr. Gamini Zoysa, Ceylon Gemmological Services Sri Lanka has long been known as one of the world’s m...
Various geological reports on Nigerian Geology reviewed indicate that gemstones occur in all the geo...
Gemstone value is often associated with origin as particular color, clarity, and other attributes of...
La géographie des gemmes a beaucoup évolué au cours des deux dernières décennies. Les exploitations ...
Prospecting methods adapted to gemstone prospecting are considered and described in this paper. They...
The gemstones of ancient Egypt, broadly defined, include all rocks, minerals, and biogenic materials...
Réalisé à partir de missions de terrain ayant eu lieu entre 2004 et 2008. Rédaction entre 2008 et 20...
Gemstones are minerals of gem qualities used for adornment and decoration with the attributes of bea...
International audiencePrompted by the increasing number of laboratory-grown gems and the growing sop...