Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Precious stones."”.
-
Rare Earth: Gemstones, Geohistory, and Commercial Geography c. 1600-1750
… the eighteenth century, most of the world’s precious stones were mined in South and Southeast Asia. Europeans had long associated these parts of the world with mineral wealth, but it was not until the establishment of direct maritime connections to Indian Ocean trade in the early modern …
-
The conflict between the land owner, mineral right holder and the mining title holder in South African mining law
… of South Africa's mineral wealth, in precious stones, precious metals and base minerals, should lead to a conflict between the interests of the owner of the land and the interests of the person, who by contract with the land owner or by law, became entitled to work the mineral deposits …
-
Synthesis and solvatochromic investigation of 1,4-Di isocyanonaphthalene
… a fluorophore 1,4-Diisocyanonaphthalene (white precious stones) wassynthesized by the applied chemistry department of the university, to be studied and analyzed tosee what sort of fluorescence effect it has when various solvents are used. The structureverification and the purity of the detached …
-
An analysis of South Africa exports to the United States under the African Growth Opportunity Act
… into the United States market, and Pearls, precious stones and metals were identified as having the highest indicative trade potential, although the picture changes as the data is further disaggregated. This suggests that there is enormous potential and a great scope for export of pearls, …
-
The role of animals in Russian folk tales
… beautiful treasures formed of gold, silver, and precious stones; as superior to man in their magic power; a benevolent force is often seen in the dragon, evil and fearsome in Western folklore. There is, however, another side to the respect for animals shown in these stories--the awe of what …
-
Silicosis among Cape gemstone workers : tigers' eye pneumoconiosis
… whilst involved in the processing of semi-precious gem stones. They had been employed as stone sculptors in lapidaries where they processed tigers' eye, rose quartz, amethyst, quartz crystal and a variety of other locally occurring semi-precious stones. In five of the cases exposure was in …
-
Pu-abi's Adornment for the Afterlife: Materials and Technologies of Jewelry at Ur in Mesopotamia
… and richest extant collections of gold and precious stones from antiquity and figures as one of the most renowned and often illustrated aspects of Sumerian culture. With a few notable exceptions most scholars have interpreted these jewels primarily as a reflection in burial of a significant …
-
The discovery and development of the Namaqualand Diamond Field, 1925-1950
… came the fortuitous discovery of the first precious stones on Port Nolloth Reserve or Commonage. This was followed by the astounding discoveries on the coastal terraces at Alexander Bay and Kleinzee, which quickly outdistanced the importance of the copper industry founded in Namaqualand in …
-
The discovery and development of the Namaqualand Diamond Field, 1925-1950
… came the fortuitous discovery of the first precious stones on Port Nolloth Reserve or Commonage. This was followed by the astounding discoveries on the coastal terraces at Alexander Bay and Kleinzee, which quickly outdistanced the importance of the copper industry founded in Namaqualand in …
-
Lead poisoning: with special reference to renal and vascular symptoms
… canned food industry; and even the polishing of precious stones. Lead may enter our houses in drinking water, which is commonly conveyed in lead pipes and stored in lead lined cisterns. Conditions may occur which render a safe and potable water plumbo -solvent, and serious harm may be done before …