Results 281 to 290 of about 105,427 (331)
Some of the next articles are maybe not open access.
Angewandte Chemie International Edition in English, 1973
AbstractThe first industrially feasible process for the synthesis of rubies was developed by Verneuil around the turn of the century. Progress in growing single crystals led in time to numerous other processes, some of which can be applied to the production of precious stones.
openaire +1 more source
AbstractThe first industrially feasible process for the synthesis of rubies was developed by Verneuil around the turn of the century. Progress in growing single crystals led in time to numerous other processes, some of which can be applied to the production of precious stones.
openaire +1 more source
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
openaire +1 more source
Precious & Semi-Precious Stones Issue / Preface
2022Precious and Semi-Precious Stones, or in other words “gemstones”, occupy a special place among other minerals and rocks due to their rarity in nature, their durability, and some of their physical and chemical properties. Gemstones have been widely used in different cultures with different meanings since the beginning of humankind . The belief that some
openaire +1 more source
Adsorptive recovery of precious metals from aqueous solution using nanomaterials – A critical review
Coordination Chemistry Reviews, 2021Ziyong Chang, Jiayu Wang
exaly
2000
Abstract In the final book of the Natural History (37) Pliny discusses precious stones, or gems.1 Here (37. 1), Nature’s grandeur is gathered together within the narrowest limits. ...very many people find that a single gemstone alone is enough to provide them with a supreme and perfect aesthetic experience of the wonder of Nature.’ (‘in ...
openaire +1 more source
Abstract In the final book of the Natural History (37) Pliny discusses precious stones, or gems.1 Here (37. 1), Nature’s grandeur is gathered together within the narrowest limits. ...very many people find that a single gemstone alone is enough to provide them with a supreme and perfect aesthetic experience of the wonder of Nature.’ (‘in ...
openaire +1 more source
Precious and Semiprecious Stones
2011Gems are found worldwide. When there is a sufficient quantity to be worked, it is termed a deposit. A deposit, as well as the location of discovery of a single find, is termed the gem occurrence. The gem cut defines the shape of a stone and determines whether it sparkles or shines.
openaire +1 more source