Article - 6 Feb 2001
Aluminium Oxide (Al2O3) or alumina is one of the most versatile of refractory ceramic oxides and finds use in a wide range of applications.
Article - 9 Mar 2004
3D Systems Corp have developed a photoreactive epoxy resin for use in stereolithography. The new product is designed for use by jewellery manufacturers for making design models and patterns, including...
Article - 25 Oct 2018
This article discusses how to evaluate the optical properties of natural gemstones and diamonds.
Article - 4 Jun 2013
Manganese is a pinkish-gray, chemically active element with Mn as its symbol. It belongs to group 7, periodic number 4 of the periodic table. Its atomic number is 25.
Article - 14 Oct 2002
Manganese is an important alloying additive for ferrous and non-ferrous alloys imparting many beneficial properties. Sources, production, allotropes, properties and applications of manganese and some...
Article - 20 Jul 2001
Silicon is synthesized commercially by heating carbon and silica in an electric furnace, using carbon electrodes.
Article - 30 Mar 2017
This article discusses how spectroscopy can be used to determine whether an emerald is natural or synthetic.