Article - 24 Apr 2008
This paper describes a technique that utilizes a microspectrophotometer to quantify the color of gemstone with greater accuracy and precision than the human eye or a standard spectrophotometer. It...
Article - 16 Aug 2003
Sapphires are well known gem stones. The stages in their processing, such as grading, heat treatment and marketing are discussed. Characteristics and colours are also mentioned.
Article - 21 Jul 2001
Silver metal in its pure state has a brilliant white metallic lustre and it is a little harder than gold and is very ductile and malleable. It has 3 commercial types and applications in jewellery,...
Article - 20 Jul 2001
Gold is most widely known as a precious metal due to its high lustre and chemical inertness. It is also used for coinage, ornaments, jewellery, gilding, textile industry, radiation control,...
News - 26 Mar 2009
As a first, BASF is launching a plastic containing carbon nanotubes (CNT) onto the market. This material is Ultraform® N2320 C, a polyoxymethylene (POM, also: polyacetal) that, thanks to the novel...
News - 16 Jun 2014
Dow Corning to feature high-performance insulation, air and water barrier, structural glazing sealant at 2014 AIA Convention in Chicago
With today's push for sustainable construction,...