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Platinum
Platinum: The very expensive metal PLATINUM is heavier and more expensive than GOLD, and has uses in jewellery and money-storage, but also has some interesting chemical properties. For example, hydrogen and oxygen gas will mix and are quite stable. Introduce some platinum, and BANG! The catalytic properties of the element platinum set reactions in process! Also see the Platinum-Diamond connection
A set of international links follows:
International Platinum Association
Platinum Metals Review
As from the July 2004 issue, Johnson Matthey's science journal Platinum Metals Review became an
E-journal with the editorial team offering a free quarterly E-journal on the dedicated website.
Platinum Today / Johnson Matthey - "the world's leading authority on platinum"
Platinum at IMPLATS.za - was www.implats.co.za
Jewellery at the Platinum Collection.co.uk
USGS mineral statistics for Platinum Group Metals
http://chemicool.com/elements/platinum.html
www.geology.wisc.edu/~jill/pt.html
www.chemicalelements.com/elements/pt.html
http://chemlab.pc.maricopa.edu/periodic/Pt.html
www.cs.ubc.ca/cgi-bin/nph-pertab/tab/element/Pt
To add to here, for example to enlighten me on some good URLs, or to promote your own company if you're in to Platinum business, e-mail here
Also note: The idea of being more prestigious that gold means that there are a lot of things such as credit cards called "platinum", for example the GM Platinum Credit Card and the Lloyds TSB Platinum Credit Card, even though of course the platinum quality is symbolic and the metallic content of the actual card is zero. So, when searching for "platinum" on search engines, try adding things like "atomic weight", or put "platinum group metals".
Other info:
Density: 21.4
Atomic number: 78
Atomic weight: 195.09
Melting point: 1770 °C
Cost: Expensive